diff --git a/.mkosi/mkosi.arch b/.mkosi/mkosi.arch
index c2487c9ef2..a823a95e70 100644
--- a/.mkosi/mkosi.arch
+++ b/.mkosi/mkosi.arch
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # This file is part of systemd.
 #
 # Copyright 2016 Zeal Jagannatha
diff --git a/.mkosi/mkosi.debian b/.mkosi/mkosi.debian
index 1a3b517d0f..a93eb7b539 100644
--- a/.mkosi/mkosi.debian
+++ b/.mkosi/mkosi.debian
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # This file is part of systemd.
 #
 # Copyright 2016 Daniel Rusek
diff --git a/.mkosi/mkosi.fedora b/.mkosi/mkosi.fedora
index f54cbe08f3..4d7168c00b 100644
--- a/.mkosi/mkosi.fedora
+++ b/.mkosi/mkosi.fedora
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # This file is part of systemd.
 #
 # Copyright 2016 Lennart Poettering
diff --git a/catalog/meson.build b/catalog/meson.build
index 3e61e6fc5b..baebd45ea4 100644
--- a/catalog/meson.build
+++ b/catalog/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 in_files = '''
         systemd.bg.catalog
         systemd.be.catalog
diff --git a/catalog/systemd.be.catalog.in b/catalog/systemd.be.catalog.in
index 5b1cdf2492..28de086be7 100644
--- a/catalog/systemd.be.catalog.in
+++ b/catalog/systemd.be.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.be@latin.catalog.in b/catalog/systemd.be@latin.catalog.in
index 764432c0dc..dc5f9b731f 100644
--- a/catalog/systemd.be@latin.catalog.in
+++ b/catalog/systemd.be@latin.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.bg.catalog.in b/catalog/systemd.bg.catalog.in
index 4b6cf118be..202b192b30 100644
--- a/catalog/systemd.bg.catalog.in
+++ b/catalog/systemd.bg.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.catalog.in b/catalog/systemd.catalog.in
index 1efa021fdc..c637af7ca2 100644
--- a/catalog/systemd.catalog.in
+++ b/catalog/systemd.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.da.catalog.in b/catalog/systemd.da.catalog.in
index a5570f47d5..69446fb7f0 100644
--- a/catalog/systemd.da.catalog.in
+++ b/catalog/systemd.da.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.de.catalog.in b/catalog/systemd.de.catalog.in
index b69a8be198..8fdedafc09 100644
--- a/catalog/systemd.de.catalog.in
+++ b/catalog/systemd.de.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.fr.catalog.in b/catalog/systemd.fr.catalog.in
index d9fa58fff0..36c87147a7 100644
--- a/catalog/systemd.fr.catalog.in
+++ b/catalog/systemd.fr.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.hr.catalog.in b/catalog/systemd.hr.catalog.in
index d30e955e28..f6e238e7c1 100644
--- a/catalog/systemd.hr.catalog.in
+++ b/catalog/systemd.hr.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.hu.catalog.in b/catalog/systemd.hu.catalog.in
index 23c1cd44db..9f5e87893b 100644
--- a/catalog/systemd.hu.catalog.in
+++ b/catalog/systemd.hu.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.it.catalog.in b/catalog/systemd.it.catalog.in
index 208ac2bfdc..df1e225eaf 100644
--- a/catalog/systemd.it.catalog.in
+++ b/catalog/systemd.it.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2013 Daniele Medri
diff --git a/catalog/systemd.ko.catalog.in b/catalog/systemd.ko.catalog.in
index 4e8d7008c3..e57818081d 100644
--- a/catalog/systemd.ko.catalog.in
+++ b/catalog/systemd.ko.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.pl.catalog.in b/catalog/systemd.pl.catalog.in
index 278b699e26..3641db2e66 100644
--- a/catalog/systemd.pl.catalog.in
+++ b/catalog/systemd.pl.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.pt_BR.catalog.in b/catalog/systemd.pt_BR.catalog.in
index 192fd33c1c..6a30dd3e10 100644
--- a/catalog/systemd.pt_BR.catalog.in
+++ b/catalog/systemd.pt_BR.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.ru.catalog.in b/catalog/systemd.ru.catalog.in
index b04c78dc24..25ee6acfba 100644
--- a/catalog/systemd.ru.catalog.in
+++ b/catalog/systemd.ru.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.sr.catalog.in b/catalog/systemd.sr.catalog.in
index 674eb557b5..1d494ffce2 100644
--- a/catalog/systemd.sr.catalog.in
+++ b/catalog/systemd.sr.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.zh_CN.catalog.in b/catalog/systemd.zh_CN.catalog.in
index 78a8a8ca62..92e32200de 100644
--- a/catalog/systemd.zh_CN.catalog.in
+++ b/catalog/systemd.zh_CN.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/catalog/systemd.zh_TW.catalog.in b/catalog/systemd.zh_TW.catalog.in
index d262b88a01..66db58d162 100644
--- a/catalog/systemd.zh_TW.catalog.in
+++ b/catalog/systemd.zh_TW.catalog.in
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  Copyright 2012 Lennart Poettering
diff --git a/docs/sysvinit/meson.build b/docs/sysvinit/meson.build
index 115ad39ce2..5c1aa4cc20 100644
--- a/docs/sysvinit/meson.build
+++ b/docs/sysvinit/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 file = configure_file(
         input : 'README.in',
         output : 'README',
diff --git a/docs/var-log/meson.build b/docs/var-log/meson.build
index 60acf494ef..fc14c0405e 100644
--- a/docs/var-log/meson.build
+++ b/docs/var-log/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 file = configure_file(
         input : 'README.in',
         output : 'README',
diff --git a/hwdb/meson.build b/hwdb/meson.build
index a5175039cd..d333ee68a3 100644
--- a/hwdb/meson.build
+++ b/hwdb/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 hwdb_files = files('''
         20-pci-vendor-model.hwdb
         20-pci-classes.hwdb
diff --git a/hwdb/parse_hwdb.py b/hwdb/parse_hwdb.py
index eb52dc917b..f4cc9c6974 100755
--- a/hwdb/parse_hwdb.py
+++ b/hwdb/parse_hwdb.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 # -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+#  SPDX-License-Identifier: MIT
 #
 # This file is part of systemd. It is distrubuted under the MIT license, see
 # below.
diff --git a/man/binfmt.d.xml b/man/binfmt.d.xml
index 5b63cfb4c3..5f55cb4db2 100644
--- a/man/binfmt.d.xml
+++ b/man/binfmt.d.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/bootctl.xml b/man/bootctl.xml
index 675e0174e9..b3b63fa255 100644
--- a/man/bootctl.xml
+++ b/man/bootctl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/man/bootup.xml b/man/bootup.xml
index b92c60f43a..56f4f57097 100644
--- a/man/bootup.xml
+++ b/man/bootup.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/busctl.xml b/man/busctl.xml
index 28b36f09d0..2446a8caa4 100644
--- a/man/busctl.xml
+++ b/man/busctl.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/coredump.conf.xml b/man/coredump.conf.xml
index 5f61e05f40..097296059f 100644
--- a/man/coredump.conf.xml
+++ b/man/coredump.conf.xml
@@ -3,6 +3,8 @@
         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/coredumpctl.xml b/man/coredumpctl.xml
index 5bbd5222af..73f4b87dac 100644
--- a/man/coredumpctl.xml
+++ b/man/coredumpctl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Zbigniew Jędrzejewski-Szmek
diff --git a/man/crypttab.xml b/man/crypttab.xml
index 3aebd7ea90..474d3d83e0 100644
--- a/man/crypttab.xml
+++ b/man/crypttab.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/custom-html.xsl b/man/custom-html.xsl
index e89d73e7f1..47ce6abfee 100644
--- a/man/custom-html.xsl
+++ b/man/custom-html.xsl
@@ -1,6 +1,8 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/custom-man.xsl b/man/custom-man.xsl
index e1b8d3618a..3307fd3c0d 100644
--- a/man/custom-man.xsl
+++ b/man/custom-man.xsl
@@ -1,6 +1,8 @@
 <?xml version='1.0'?> <!--*-nxml-*-->
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/daemon.xml b/man/daemon.xml
index 485c66225e..5b782c88a5 100644
--- a/man/daemon.xml
+++ b/man/daemon.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/dnssec-trust-anchors.d.xml b/man/dnssec-trust-anchors.d.xml
index 6e90e6aef9..d6e488065b 100644
--- a/man/dnssec-trust-anchors.d.xml
+++ b/man/dnssec-trust-anchors.d.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/environment.d.xml b/man/environment.d.xml
index ad9db1666f..c050061abc 100644
--- a/man/environment.d.xml
+++ b/man/environment.d.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Red Hat, Inc.
diff --git a/man/file-hierarchy.xml b/man/file-hierarchy.xml
index ab52ccfe0c..b1442dd82c 100644
--- a/man/file-hierarchy.xml
+++ b/man/file-hierarchy.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/glib-event-glue.c b/man/glib-event-glue.c
index 8f3168d0ea..32d8e921b8 100644
--- a/man/glib-event-glue.c
+++ b/man/glib-event-glue.c
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: MIT
+
   Copyright 2014 Tom Gundersen
 
   Permission is hereby granted, free of charge, to any person
diff --git a/man/halt.xml b/man/halt.xml
index e3fa60a915..3ba151f927 100644
--- a/man/halt.xml
+++ b/man/halt.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/hostname.xml b/man/hostname.xml
index 8a4c0d5ac0..7b0fd29237 100644
--- a/man/hostname.xml
+++ b/man/hostname.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/hostnamectl.xml b/man/hostnamectl.xml
index 81bce2da6a..fa70d5cc6c 100644
--- a/man/hostnamectl.xml
+++ b/man/hostnamectl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/hwdb.xml b/man/hwdb.xml
index ae5ddb1a4d..bf89819949 100644
--- a/man/hwdb.xml
+++ b/man/hwdb.xml
@@ -2,6 +2,28 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2014 Tom Gundersen
+  Copyright 2016 Zbigniew Jędrzejewski-Szmek
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refentry id="hwdb" conditional="ENABLE_HWDB">
   <refentryinfo>
     <title>hwdb</title>
diff --git a/man/journal-remote.conf.xml b/man/journal-remote.conf.xml
index f7ac8c46e0..ed49c39f35 100644
--- a/man/journal-remote.conf.xml
+++ b/man/journal-remote.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Chris Morgan
diff --git a/man/journal-upload.conf.xml b/man/journal-upload.conf.xml
index e3be62dfd1..bbb6df503b 100644
--- a/man/journal-upload.conf.xml
+++ b/man/journal-upload.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Zbigniew Jędrzejewski-Szmek
diff --git a/man/journalctl.xml b/man/journalctl.xml
index c80e0ed1c2..089fb1378f 100644
--- a/man/journalctl.xml
+++ b/man/journalctl.xml
@@ -3,6 +3,8 @@
         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/journald.conf.xml b/man/journald.conf.xml
index fa3694d3b4..844228e324 100644
--- a/man/journald.conf.xml
+++ b/man/journald.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/kernel-command-line.xml b/man/kernel-command-line.xml
index 4ab76487df..1864895ee2 100644
--- a/man/kernel-command-line.xml
+++ b/man/kernel-command-line.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/kernel-install.xml b/man/kernel-install.xml
index 94b6b1110d..fa86a3aaa0 100644
--- a/man/kernel-install.xml
+++ b/man/kernel-install.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Harald Hoyer
diff --git a/man/less-variables.xml b/man/less-variables.xml
index 396481c937..750815e7ce 100644
--- a/man/less-variables.xml
+++ b/man/less-variables.xml
@@ -2,6 +2,27 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
                  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2016 Lennart Poettering
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refsect1>
   <title>Environment</title>
 
diff --git a/man/libsystemd-pkgconfig.xml b/man/libsystemd-pkgconfig.xml
index 272da64cd7..b98f60922a 100644
--- a/man/libsystemd-pkgconfig.xml
+++ b/man/libsystemd-pkgconfig.xml
@@ -2,6 +2,27 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
           "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refsect1>
   <title>Notes</title>
 
diff --git a/man/libudev.xml b/man/libudev.xml
index 53b68dcc89..e92db55759 100644
--- a/man/libudev.xml
+++ b/man/libudev.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/locale.conf.xml b/man/locale.conf.xml
index 1405dda3fd..cd349acdcd 100644
--- a/man/locale.conf.xml
+++ b/man/locale.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/localectl.xml b/man/localectl.xml
index 7da12c29de..8588541041 100644
--- a/man/localectl.xml
+++ b/man/localectl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/localtime.xml b/man/localtime.xml
index 2827da6e93..0341c61614 100644
--- a/man/localtime.xml
+++ b/man/localtime.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/loginctl.xml b/man/loginctl.xml
index 617852dfa7..65c5227ed3 100644
--- a/man/loginctl.xml
+++ b/man/loginctl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/logind.conf.xml b/man/logind.conf.xml
index 16f51af72c..8d2bfc5d5b 100644
--- a/man/logind.conf.xml
+++ b/man/logind.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/machine-id.xml b/man/machine-id.xml
index e434c89de9..3d82a3edaf 100644
--- a/man/machine-id.xml
+++ b/man/machine-id.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/machine-info.xml b/man/machine-info.xml
index cd5997d4e2..b9f4fa821e 100644
--- a/man/machine-info.xml
+++ b/man/machine-info.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/machinectl.xml b/man/machinectl.xml
index 8c71880cf2..73fc5a68f6 100644
--- a/man/machinectl.xml
+++ b/man/machinectl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/meson.build b/man/meson.build
index e376bb8365..8757dccb84 100644
--- a/man/meson.build
+++ b/man/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 # This is lame, I know, but meson has no other include mechanism
 subdir('rules')
 
diff --git a/man/modules-load.d.xml b/man/modules-load.d.xml
index 4b722aa128..0dd0c3c161 100644
--- a/man/modules-load.d.xml
+++ b/man/modules-load.d.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/networkctl.xml b/man/networkctl.xml
index d4fa5e9029..33e0629d80 100644
--- a/man/networkctl.xml
+++ b/man/networkctl.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Zbigniew Jędrzejewski-Szmek
diff --git a/man/networkd.conf.xml b/man/networkd.conf.xml
index 57e647a31b..8a16058161 100644
--- a/man/networkd.conf.xml
+++ b/man/networkd.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Vinay Kulkarni
diff --git a/man/nss-myhostname.xml b/man/nss-myhostname.xml
index 2b180a37cb..bf3ea405a1 100644
--- a/man/nss-myhostname.xml
+++ b/man/nss-myhostname.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/nss-mymachines.xml b/man/nss-mymachines.xml
index 00bcc53ec0..dc3076ab0d 100644
--- a/man/nss-mymachines.xml
+++ b/man/nss-mymachines.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/nss-resolve.xml b/man/nss-resolve.xml
index f88c25c453..edd4e9d32e 100644
--- a/man/nss-resolve.xml
+++ b/man/nss-resolve.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/nss-systemd.xml b/man/nss-systemd.xml
index 34811f0a2e..0114a6f936 100644
--- a/man/nss-systemd.xml
+++ b/man/nss-systemd.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/os-release.xml b/man/os-release.xml
index 99bbb61004..b0468c16a0 100644
--- a/man/os-release.xml
+++ b/man/os-release.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/pam_systemd.xml b/man/pam_systemd.xml
index cef5445c1c..f45631688c 100644
--- a/man/pam_systemd.xml
+++ b/man/pam_systemd.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/resolved.conf.xml b/man/resolved.conf.xml
index 1846df7502..451b9cdd01 100644
--- a/man/resolved.conf.xml
+++ b/man/resolved.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Tom Gundersen
diff --git a/man/runlevel.xml b/man/runlevel.xml
index 50fdacde00..b3d90d8ff4 100644
--- a/man/runlevel.xml
+++ b/man/runlevel.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd-bus-errors.xml b/man/sd-bus-errors.xml
index 055af7a682..a655ab1d97 100644
--- a/man/sd-bus-errors.xml
+++ b/man/sd-bus-errors.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd-bus.xml b/man/sd-bus.xml
index 6439395549..48d62d466f 100644
--- a/man/sd-bus.xml
+++ b/man/sd-bus.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd-daemon.xml b/man/sd-daemon.xml
index b06d99f346..151d89e698 100644
--- a/man/sd-daemon.xml
+++ b/man/sd-daemon.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd-event.xml b/man/sd-event.xml
index 24a69bb645..2518050570 100644
--- a/man/sd-event.xml
+++ b/man/sd-event.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd-id128.xml b/man/sd-id128.xml
index bc74e3f481..bd27237978 100644
--- a/man/sd-id128.xml
+++ b/man/sd-id128.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd-journal.xml b/man/sd-journal.xml
index 0f4b3e8eea..52f99c7f4c 100644
--- a/man/sd-journal.xml
+++ b/man/sd-journal.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd-login.xml b/man/sd-login.xml
index b2131a9af9..148dd19cea 100644
--- a/man/sd-login.xml
+++ b/man/sd-login.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_booted.xml b/man/sd_booted.xml
index 4dd674b8ea..54a9de894b 100644
--- a/man/sd_booted.xml
+++ b/man/sd_booted.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_bus_add_match.xml b/man/sd_bus_add_match.xml
index 2014141ae3..4772c738ac 100644
--- a/man/sd_bus_add_match.xml
+++ b/man/sd_bus_add_match.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Julian Orth
diff --git a/man/sd_bus_creds_get_pid.xml b/man/sd_bus_creds_get_pid.xml
index 56e62863f2..6bc78edf07 100644
--- a/man/sd_bus_creds_get_pid.xml
+++ b/man/sd_bus_creds_get_pid.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_creds_new_from_pid.xml b/man/sd_bus_creds_new_from_pid.xml
index b4d7d61d0f..5cdff073ea 100644
--- a/man/sd_bus_creds_new_from_pid.xml
+++ b/man/sd_bus_creds_new_from_pid.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_default.xml b/man/sd_bus_default.xml
index d9102a36ce..62520ff4dd 100644
--- a/man/sd_bus_default.xml
+++ b/man/sd_bus_default.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_error.xml b/man/sd_bus_error.xml
index 4970ce3c08..ef40178f1f 100644
--- a/man/sd_bus_error.xml
+++ b/man/sd_bus_error.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_error_add_map.xml b/man/sd_bus_error_add_map.xml
index a1eda21ed5..b79381fefd 100644
--- a/man/sd_bus_error_add_map.xml
+++ b/man/sd_bus_error_add_map.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_bus_get_fd.xml b/man/sd_bus_get_fd.xml
index 9f7019069f..2e867b0bf7 100644
--- a/man/sd_bus_get_fd.xml
+++ b/man/sd_bus_get_fd.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Julian Orth
diff --git a/man/sd_bus_message_append.xml b/man/sd_bus_message_append.xml
index 2c28ee7154..3fba212014 100644
--- a/man/sd_bus_message_append.xml
+++ b/man/sd_bus_message_append.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_message_append_array.xml b/man/sd_bus_message_append_array.xml
index 27db2a96c3..2b9f3d1832 100644
--- a/man/sd_bus_message_append_array.xml
+++ b/man/sd_bus_message_append_array.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_message_append_basic.xml b/man/sd_bus_message_append_basic.xml
index 276953af69..bec126836e 100644
--- a/man/sd_bus_message_append_basic.xml
+++ b/man/sd_bus_message_append_basic.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_message_append_string_memfd.xml b/man/sd_bus_message_append_string_memfd.xml
index 9e99999bf3..470c62d4e1 100644
--- a/man/sd_bus_message_append_string_memfd.xml
+++ b/man/sd_bus_message_append_string_memfd.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_message_append_strv.xml b/man/sd_bus_message_append_strv.xml
index 0f77adcc8b..21feafd501 100644
--- a/man/sd_bus_message_append_strv.xml
+++ b/man/sd_bus_message_append_strv.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_message_get_cookie.xml b/man/sd_bus_message_get_cookie.xml
index 3328eead3d..d87d361501 100644
--- a/man/sd_bus_message_get_cookie.xml
+++ b/man/sd_bus_message_get_cookie.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/sd_bus_message_get_monotonic_usec.xml b/man/sd_bus_message_get_monotonic_usec.xml
index 2c0a8a5d54..9d619e5f68 100644
--- a/man/sd_bus_message_get_monotonic_usec.xml
+++ b/man/sd_bus_message_get_monotonic_usec.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/sd_bus_message_read_basic.xml b/man/sd_bus_message_read_basic.xml
index 6a46403159..eb1750b2db 100644
--- a/man/sd_bus_message_read_basic.xml
+++ b/man/sd_bus_message_read_basic.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Julian Orth
diff --git a/man/sd_bus_negotiate_fds.xml b/man/sd_bus_negotiate_fds.xml
index e91269ba31..5841c2dad6 100644
--- a/man/sd_bus_negotiate_fds.xml
+++ b/man/sd_bus_negotiate_fds.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/sd_bus_new.xml b/man/sd_bus_new.xml
index d281b5dd44..57e9f4a9cf 100644
--- a/man/sd_bus_new.xml
+++ b/man/sd_bus_new.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_path_encode.xml b/man/sd_bus_path_encode.xml
index 986eccc6a8..1c898b4fab 100644
--- a/man/sd_bus_path_encode.xml
+++ b/man/sd_bus_path_encode.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_bus_process.xml b/man/sd_bus_process.xml
index 4b9f52e52f..d9731f332c 100644
--- a/man/sd_bus_process.xml
+++ b/man/sd_bus_process.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Julian Orth
diff --git a/man/sd_bus_request_name.xml b/man/sd_bus_request_name.xml
index f07ae09555..f44cfdb1ac 100644
--- a/man/sd_bus_request_name.xml
+++ b/man/sd_bus_request_name.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/sd_bus_track_add_name.xml b/man/sd_bus_track_add_name.xml
index 6a5e344cb1..19d0115bc9 100644
--- a/man/sd_bus_track_add_name.xml
+++ b/man/sd_bus_track_add_name.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/sd_bus_track_new.xml b/man/sd_bus_track_new.xml
index 60e2e77f75..4f92a5513d 100644
--- a/man/sd_bus_track_new.xml
+++ b/man/sd_bus_track_new.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/sd_event_add_child.xml b/man/sd_event_add_child.xml
index bc732db7fa..15ea5de327 100644
--- a/man/sd_event_add_child.xml
+++ b/man/sd_event_add_child.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_event_add_defer.xml b/man/sd_event_add_defer.xml
index ab28b330fe..9064e63365 100644
--- a/man/sd_event_add_defer.xml
+++ b/man/sd_event_add_defer.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_event_add_io.xml b/man/sd_event_add_io.xml
index c3749164cd..d7b26f7887 100644
--- a/man/sd_event_add_io.xml
+++ b/man/sd_event_add_io.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_add_signal.xml b/man/sd_event_add_signal.xml
index e98f1d2682..192ba95ffa 100644
--- a/man/sd_event_add_signal.xml
+++ b/man/sd_event_add_signal.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_event_add_time.xml b/man/sd_event_add_time.xml
index 5496b71529..56abac18cd 100644
--- a/man/sd_event_add_time.xml
+++ b/man/sd_event_add_time.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/sd_event_exit.xml b/man/sd_event_exit.xml
index 9846a3eaf4..a798a1c482 100644
--- a/man/sd_event_exit.xml
+++ b/man/sd_event_exit.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_get_fd.xml b/man/sd_event_get_fd.xml
index f68752dd0e..ed648c2347 100644
--- a/man/sd_event_get_fd.xml
+++ b/man/sd_event_get_fd.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_event_new.xml b/man/sd_event_new.xml
index c0a5e98177..35f91cd303 100644
--- a/man/sd_event_new.xml
+++ b/man/sd_event_new.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/sd_event_now.xml b/man/sd_event_now.xml
index 2c83b0bcb5..a17e208934 100644
--- a/man/sd_event_now.xml
+++ b/man/sd_event_now.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_run.xml b/man/sd_event_run.xml
index 5b68959165..fb2687f3a4 100644
--- a/man/sd_event_run.xml
+++ b/man/sd_event_run.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_event_set_watchdog.xml b/man/sd_event_set_watchdog.xml
index cbc5bc0836..ee28caf235 100644
--- a/man/sd_event_set_watchdog.xml
+++ b/man/sd_event_set_watchdog.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_get_event.xml b/man/sd_event_source_get_event.xml
index 2fdbd411bd..219956dcee 100644
--- a/man/sd_event_source_get_event.xml
+++ b/man/sd_event_source_get_event.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_get_pending.xml b/man/sd_event_source_get_pending.xml
index 7f88bd1b87..dff6952a5a 100644
--- a/man/sd_event_source_get_pending.xml
+++ b/man/sd_event_source_get_pending.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_set_description.xml b/man/sd_event_source_set_description.xml
index b9488a622f..ad855e6f89 100644
--- a/man/sd_event_source_set_description.xml
+++ b/man/sd_event_source_set_description.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_event_source_set_enabled.xml b/man/sd_event_source_set_enabled.xml
index 6844f29a49..0628c3e8e9 100644
--- a/man/sd_event_source_set_enabled.xml
+++ b/man/sd_event_source_set_enabled.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_set_prepare.xml b/man/sd_event_source_set_prepare.xml
index ee61d23983..148cab16b1 100644
--- a/man/sd_event_source_set_prepare.xml
+++ b/man/sd_event_source_set_prepare.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_set_priority.xml b/man/sd_event_source_set_priority.xml
index b6bab6d316..43edd76a7e 100644
--- a/man/sd_event_source_set_priority.xml
+++ b/man/sd_event_source_set_priority.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_set_userdata.xml b/man/sd_event_source_set_userdata.xml
index 533d491b13..cb317ad1d7 100644
--- a/man/sd_event_source_set_userdata.xml
+++ b/man/sd_event_source_set_userdata.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_source_unref.xml b/man/sd_event_source_unref.xml
index 2c4d450763..ec9e7c01fc 100644
--- a/man/sd_event_source_unref.xml
+++ b/man/sd_event_source_unref.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/sd_event_wait.xml b/man/sd_event_wait.xml
index 26327dc688..89de31d22f 100644
--- a/man/sd_event_wait.xml
+++ b/man/sd_event_wait.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Zbigniew Jędrzejewski-Szmek
diff --git a/man/sd_get_seats.xml b/man/sd_get_seats.xml
index c053144483..b4b133ff0f 100644
--- a/man/sd_get_seats.xml
+++ b/man/sd_get_seats.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_id128_get_machine.xml b/man/sd_id128_get_machine.xml
index 3938c6d836..a97beebbd5 100644
--- a/man/sd_id128_get_machine.xml
+++ b/man/sd_id128_get_machine.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_id128_randomize.xml b/man/sd_id128_randomize.xml
index 852a9fd7eb..bdce3b18b7 100644
--- a/man/sd_id128_randomize.xml
+++ b/man/sd_id128_randomize.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_id128_to_string.xml b/man/sd_id128_to_string.xml
index 927d1ad5f2..b82b141a3a 100644
--- a/man/sd_id128_to_string.xml
+++ b/man/sd_id128_to_string.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_is_fifo.xml b/man/sd_is_fifo.xml
index 3bd388d80e..2af17df650 100644
--- a/man/sd_is_fifo.xml
+++ b/man/sd_is_fifo.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_journal_add_match.xml b/man/sd_journal_add_match.xml
index 2294b43643..b41d6189d9 100644
--- a/man/sd_journal_add_match.xml
+++ b/man/sd_journal_add_match.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_enumerate_fields.xml b/man/sd_journal_enumerate_fields.xml
index bc2c21ed4b..20005564b0 100644
--- a/man/sd_journal_enumerate_fields.xml
+++ b/man/sd_journal_enumerate_fields.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/sd_journal_get_catalog.xml b/man/sd_journal_get_catalog.xml
index 92ed0dea06..95f3e3b007 100644
--- a/man/sd_journal_get_catalog.xml
+++ b/man/sd_journal_get_catalog.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_get_cursor.xml b/man/sd_journal_get_cursor.xml
index b7aa05f8b2..ead150ec53 100644
--- a/man/sd_journal_get_cursor.xml
+++ b/man/sd_journal_get_cursor.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_get_cutoff_realtime_usec.xml b/man/sd_journal_get_cutoff_realtime_usec.xml
index 0950e11b44..8fd9674111 100644
--- a/man/sd_journal_get_cutoff_realtime_usec.xml
+++ b/man/sd_journal_get_cutoff_realtime_usec.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_get_data.xml b/man/sd_journal_get_data.xml
index 01e436e70d..831ed0bc6e 100644
--- a/man/sd_journal_get_data.xml
+++ b/man/sd_journal_get_data.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_get_fd.xml b/man/sd_journal_get_fd.xml
index 2e686caccb..b162b2bf11 100644
--- a/man/sd_journal_get_fd.xml
+++ b/man/sd_journal_get_fd.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_get_realtime_usec.xml b/man/sd_journal_get_realtime_usec.xml
index 607d74666b..49800c34a3 100644
--- a/man/sd_journal_get_realtime_usec.xml
+++ b/man/sd_journal_get_realtime_usec.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_get_usage.xml b/man/sd_journal_get_usage.xml
index 06b0ff534d..63d073e119 100644
--- a/man/sd_journal_get_usage.xml
+++ b/man/sd_journal_get_usage.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_has_runtime_files.xml b/man/sd_journal_has_runtime_files.xml
index 3f6d56ca77..7431190496 100644
--- a/man/sd_journal_has_runtime_files.xml
+++ b/man/sd_journal_has_runtime_files.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Jan Synáček
diff --git a/man/sd_journal_next.xml b/man/sd_journal_next.xml
index 7c385de260..18b0da048d 100644
--- a/man/sd_journal_next.xml
+++ b/man/sd_journal_next.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_open.xml b/man/sd_journal_open.xml
index 25b3048f2e..5e7ae45688 100644
--- a/man/sd_journal_open.xml
+++ b/man/sd_journal_open.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_print.xml b/man/sd_journal_print.xml
index a741abe32d..f771ba307f 100644
--- a/man/sd_journal_print.xml
+++ b/man/sd_journal_print.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_query_unique.xml b/man/sd_journal_query_unique.xml
index d7a41a039c..fb08400f20 100644
--- a/man/sd_journal_query_unique.xml
+++ b/man/sd_journal_query_unique.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_seek_head.xml b/man/sd_journal_seek_head.xml
index 985073496c..7e866e8e82 100644
--- a/man/sd_journal_seek_head.xml
+++ b/man/sd_journal_seek_head.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_journal_stream_fd.xml b/man/sd_journal_stream_fd.xml
index db88eba1bc..29d64f91d7 100644
--- a/man/sd_journal_stream_fd.xml
+++ b/man/sd_journal_stream_fd.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/sd_listen_fds.xml b/man/sd_listen_fds.xml
index c1c2423884..8563a06997 100644
--- a/man/sd_listen_fds.xml
+++ b/man/sd_listen_fds.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_login_monitor_new.xml b/man/sd_login_monitor_new.xml
index 129c99f97d..935fca5697 100644
--- a/man/sd_login_monitor_new.xml
+++ b/man/sd_login_monitor_new.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_machine_get_class.xml b/man/sd_machine_get_class.xml
index ef604139da..989fa2db0f 100644
--- a/man/sd_machine_get_class.xml
+++ b/man/sd_machine_get_class.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/sd_notify.xml b/man/sd_notify.xml
index 7d7b0077be..078f1ff7e0 100644
--- a/man/sd_notify.xml
+++ b/man/sd_notify.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_pid_get_owner_uid.xml b/man/sd_pid_get_owner_uid.xml
index 5a2a07d096..fcedcfcd1f 100644
--- a/man/sd_pid_get_owner_uid.xml
+++ b/man/sd_pid_get_owner_uid.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_seat_get_active.xml b/man/sd_seat_get_active.xml
index 3dd461f83f..57a6b526f2 100644
--- a/man/sd_seat_get_active.xml
+++ b/man/sd_seat_get_active.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_session_is_active.xml b/man/sd_session_is_active.xml
index f95e74ead6..14993bcd67 100644
--- a/man/sd_session_is_active.xml
+++ b/man/sd_session_is_active.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_uid_get_state.xml b/man/sd_uid_get_state.xml
index 130af761da..1183d9079a 100644
--- a/man/sd_uid_get_state.xml
+++ b/man/sd_uid_get_state.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sd_watchdog_enabled.xml b/man/sd_watchdog_enabled.xml
index 759d9303c6..e85998c216 100644
--- a/man/sd_watchdog_enabled.xml
+++ b/man/sd_watchdog_enabled.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/shutdown.xml b/man/shutdown.xml
index a8af387c67..41fe71f4da 100644
--- a/man/shutdown.xml
+++ b/man/shutdown.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/standard-conf.xml b/man/standard-conf.xml
index 2836afccd0..673ca44edc 100644
--- a/man/standard-conf.xml
+++ b/man/standard-conf.xml
@@ -2,6 +2,28 @@
 <!DOCTYPE refsection PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
           "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2015 Zbigniew Jędrzejewski-Szmek
+  Copyright 2014 Josh Triplett
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refsection>
   <refsection id='confd'>
     <title>Configuration Directories and Precedence</title>
diff --git a/man/standard-options.xml b/man/standard-options.xml
index f718451a1b..dcc6bb89ae 100644
--- a/man/standard-options.xml
+++ b/man/standard-options.xml
@@ -2,6 +2,27 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
           "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2014 Zbigniew Jędrzejewski-Szmek
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <variablelist>
   <varlistentry id='help'>
     <term><option>-h</option></term>
diff --git a/man/sysctl.d.xml b/man/sysctl.d.xml
index ccf6c8e39f..ec69b4c5bb 100644
--- a/man/sysctl.d.xml
+++ b/man/sysctl.d.xml
@@ -1,6 +1,8 @@
 <?xml version="1.0"?> <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/systemctl.xml b/man/systemctl.xml
index f5df6065fa..c13253c266 100644
--- a/man/systemctl.xml
+++ b/man/systemctl.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-analyze.xml b/man/systemd-analyze.xml
index e74739498c..956790c50c 100644
--- a/man/systemd-analyze.xml
+++ b/man/systemd-analyze.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-ask-password-console.service.xml b/man/systemd-ask-password-console.service.xml
index 3c1537d942..db318de8c2 100644
--- a/man/systemd-ask-password-console.service.xml
+++ b/man/systemd-ask-password-console.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-ask-password.xml b/man/systemd-ask-password.xml
index 16ec257014..686fa89468 100644
--- a/man/systemd-ask-password.xml
+++ b/man/systemd-ask-password.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/systemd-backlight@.service.xml b/man/systemd-backlight@.service.xml
index 3459ed8851..e047884c50 100644
--- a/man/systemd-backlight@.service.xml
+++ b/man/systemd-backlight@.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/systemd-binfmt.service.xml b/man/systemd-binfmt.service.xml
index cccfb49ca9..0c33348ba8 100644
--- a/man/systemd-binfmt.service.xml
+++ b/man/systemd-binfmt.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-cat.xml b/man/systemd-cat.xml
index 160db9fb5c..2c394f2ceb 100644
--- a/man/systemd-cat.xml
+++ b/man/systemd-cat.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-cgls.xml b/man/systemd-cgls.xml
index 219514b183..128324e616 100644
--- a/man/systemd-cgls.xml
+++ b/man/systemd-cgls.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-cgtop.xml b/man/systemd-cgtop.xml
index be13631239..d7ad08ec37 100644
--- a/man/systemd-cgtop.xml
+++ b/man/systemd-cgtop.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-coredump.xml b/man/systemd-coredump.xml
index d71fdc644f..1341866463 100644
--- a/man/systemd-coredump.xml
+++ b/man/systemd-coredump.xml
@@ -3,6 +3,8 @@
         "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-cryptsetup-generator.xml b/man/systemd-cryptsetup-generator.xml
index f036ab9744..645e2ee178 100644
--- a/man/systemd-cryptsetup-generator.xml
+++ b/man/systemd-cryptsetup-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-cryptsetup@.service.xml b/man/systemd-cryptsetup@.service.xml
index 73bd5b78ab..efcbf247f4 100644
--- a/man/systemd-cryptsetup@.service.xml
+++ b/man/systemd-cryptsetup@.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-debug-generator.xml b/man/systemd-debug-generator.xml
index 0a66b9bbf9..e8656a36ab 100644
--- a/man/systemd-debug-generator.xml
+++ b/man/systemd-debug-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/systemd-delta.xml b/man/systemd-delta.xml
index be241f6950..94f6b093db 100644
--- a/man/systemd-delta.xml
+++ b/man/systemd-delta.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-detect-virt.xml b/man/systemd-detect-virt.xml
index 72ea35892f..4426827e57 100644
--- a/man/systemd-detect-virt.xml
+++ b/man/systemd-detect-virt.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-environment-d-generator.xml b/man/systemd-environment-d-generator.xml
index 7950aa98a5..7bc1dd0ef1 100644
--- a/man/systemd-environment-d-generator.xml
+++ b/man/systemd-environment-d-generator.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2017 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-escape.xml b/man/systemd-escape.xml
index a2f2b9242f..513e9a6a97 100644
--- a/man/systemd-escape.xml
+++ b/man/systemd-escape.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/systemd-firstboot.xml b/man/systemd-firstboot.xml
index fee37ad19c..0ac5f3bd85 100644
--- a/man/systemd-firstboot.xml
+++ b/man/systemd-firstboot.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/systemd-fsck@.service.xml b/man/systemd-fsck@.service.xml
index 711e269016..f4d2dc1341 100644
--- a/man/systemd-fsck@.service.xml
+++ b/man/systemd-fsck@.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-fstab-generator.xml b/man/systemd-fstab-generator.xml
index b898d719f2..51e390a364 100644
--- a/man/systemd-fstab-generator.xml
+++ b/man/systemd-fstab-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-getty-generator.xml b/man/systemd-getty-generator.xml
index 3058444467..adb48a7fd6 100644
--- a/man/systemd-getty-generator.xml
+++ b/man/systemd-getty-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-gpt-auto-generator.xml b/man/systemd-gpt-auto-generator.xml
index 2927fcd291..3fbe215c41 100644
--- a/man/systemd-gpt-auto-generator.xml
+++ b/man/systemd-gpt-auto-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/systemd-halt.service.xml b/man/systemd-halt.service.xml
index d16e5d628f..b58279d828 100644
--- a/man/systemd-halt.service.xml
+++ b/man/systemd-halt.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-hibernate-resume-generator.xml b/man/systemd-hibernate-resume-generator.xml
index 3bbb6ab989..188bdb6e57 100644
--- a/man/systemd-hibernate-resume-generator.xml
+++ b/man/systemd-hibernate-resume-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Ivan Shapovalov
diff --git a/man/systemd-hibernate-resume@.service.xml b/man/systemd-hibernate-resume@.service.xml
index a968adf0a9..cbda08961c 100644
--- a/man/systemd-hibernate-resume@.service.xml
+++ b/man/systemd-hibernate-resume@.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Ivan Shapovalov
diff --git a/man/systemd-hostnamed.service.xml b/man/systemd-hostnamed.service.xml
index 17755aa69e..e905e461be 100644
--- a/man/systemd-hostnamed.service.xml
+++ b/man/systemd-hostnamed.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-hwdb.xml b/man/systemd-hwdb.xml
index 2b363c77f2..c54762a254 100644
--- a/man/systemd-hwdb.xml
+++ b/man/systemd-hwdb.xml
@@ -2,6 +2,27 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2014 Tom Gundersen
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refentry id="systemd-hwdb" conditional="ENABLE_HWDB">
   <refentryinfo>
     <title>systemd-hwdb</title>
diff --git a/man/systemd-importd.service.xml b/man/systemd-importd.service.xml
index 70a618ce46..9fd36bb3b3 100644
--- a/man/systemd-importd.service.xml
+++ b/man/systemd-importd.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/systemd-inhibit.xml b/man/systemd-inhibit.xml
index 09b82b82c1..ce34cc8c50 100644
--- a/man/systemd-inhibit.xml
+++ b/man/systemd-inhibit.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-initctl.service.xml b/man/systemd-initctl.service.xml
index 5c7f9a4a16..64211e27f7 100644
--- a/man/systemd-initctl.service.xml
+++ b/man/systemd-initctl.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-journal-gatewayd.service.xml b/man/systemd-journal-gatewayd.service.xml
index 3ee344e50b..b82cc979e7 100644
--- a/man/systemd-journal-gatewayd.service.xml
+++ b/man/systemd-journal-gatewayd.service.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-journal-remote.xml b/man/systemd-journal-remote.xml
index 1f1c305267..ba88df535b 100644
--- a/man/systemd-journal-remote.xml
+++ b/man/systemd-journal-remote.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-journal-upload.xml b/man/systemd-journal-upload.xml
index f9723dea89..6fc477d75a 100644
--- a/man/systemd-journal-upload.xml
+++ b/man/systemd-journal-upload.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-journald.service.xml b/man/systemd-journald.service.xml
index 7b33d3ff17..8ca0e896ab 100644
--- a/man/systemd-journald.service.xml
+++ b/man/systemd-journald.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-localed.service.xml b/man/systemd-localed.service.xml
index 2a796c9045..308a848c08 100644
--- a/man/systemd-localed.service.xml
+++ b/man/systemd-localed.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-logind.service.xml b/man/systemd-logind.service.xml
index 47089fd8c7..b51158b7cd 100644
--- a/man/systemd-logind.service.xml
+++ b/man/systemd-logind.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-machine-id-commit.service.xml b/man/systemd-machine-id-commit.service.xml
index 39da1922cc..acb4ffb626 100644
--- a/man/systemd-machine-id-commit.service.xml
+++ b/man/systemd-machine-id-commit.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Didier Roche
diff --git a/man/systemd-machine-id-setup.xml b/man/systemd-machine-id-setup.xml
index 714317c945..527cb7bff5 100644
--- a/man/systemd-machine-id-setup.xml
+++ b/man/systemd-machine-id-setup.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-machined.service.xml b/man/systemd-machined.service.xml
index c4f173f79b..8bf4e75550 100644
--- a/man/systemd-machined.service.xml
+++ b/man/systemd-machined.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-modules-load.service.xml b/man/systemd-modules-load.service.xml
index ee097d7f5c..6f370190f2 100644
--- a/man/systemd-modules-load.service.xml
+++ b/man/systemd-modules-load.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-mount.xml b/man/systemd-mount.xml
index a27326d246..87bc2b36eb 100644
--- a/man/systemd-mount.xml
+++ b/man/systemd-mount.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/systemd-networkd-wait-online.service.xml b/man/systemd-networkd-wait-online.service.xml
index e21c805342..96715cad2f 100644
--- a/man/systemd-networkd-wait-online.service.xml
+++ b/man/systemd-networkd-wait-online.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Tom Gundersen
diff --git a/man/systemd-networkd.service.xml b/man/systemd-networkd.service.xml
index a6e079c887..8bc5f5e869 100644
--- a/man/systemd-networkd.service.xml
+++ b/man/systemd-networkd.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Tom Gundersen
diff --git a/man/systemd-notify.xml b/man/systemd-notify.xml
index 8c56a6b8ed..acd4ee41fc 100644
--- a/man/systemd-notify.xml
+++ b/man/systemd-notify.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-nspawn.xml b/man/systemd-nspawn.xml
index 1ef6567e48..cd45ceb2a1 100644
--- a/man/systemd-nspawn.xml
+++ b/man/systemd-nspawn.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-path.xml b/man/systemd-path.xml
index e2b23eec51..7144569d59 100644
--- a/man/systemd-path.xml
+++ b/man/systemd-path.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/systemd-quotacheck.service.xml b/man/systemd-quotacheck.service.xml
index 9d4976274e..c3a5e69d40 100644
--- a/man/systemd-quotacheck.service.xml
+++ b/man/systemd-quotacheck.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-random-seed.service.xml b/man/systemd-random-seed.service.xml
index 9ec01b6c34..658bdf3638 100644
--- a/man/systemd-random-seed.service.xml
+++ b/man/systemd-random-seed.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-remount-fs.service.xml b/man/systemd-remount-fs.service.xml
index 6a5f0e6e38..8e68b99fe5 100644
--- a/man/systemd-remount-fs.service.xml
+++ b/man/systemd-remount-fs.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-resolve.xml b/man/systemd-resolve.xml
index 53f843ff93..835521aa74 100644
--- a/man/systemd-resolve.xml
+++ b/man/systemd-resolve.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/systemd-resolved.service.xml b/man/systemd-resolved.service.xml
index 2f947086f5..da6e8c4441 100644
--- a/man/systemd-resolved.service.xml
+++ b/man/systemd-resolved.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Tom Gundersen
diff --git a/man/systemd-rfkill.service.xml b/man/systemd-rfkill.service.xml
index f464842700..cb6fae4c2d 100644
--- a/man/systemd-rfkill.service.xml
+++ b/man/systemd-rfkill.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/systemd-run.xml b/man/systemd-run.xml
index 010c9c7197..9db6a26dfd 100644
--- a/man/systemd-run.xml
+++ b/man/systemd-run.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-sleep.conf.xml b/man/systemd-sleep.conf.xml
index 9a379ecb94..7fecd667de 100644
--- a/man/systemd-sleep.conf.xml
+++ b/man/systemd-sleep.conf.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-socket-activate.xml b/man/systemd-socket-activate.xml
index 356bc10359..79e35dd30e 100644
--- a/man/systemd-socket-activate.xml
+++ b/man/systemd-socket-activate.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-socket-proxyd.xml b/man/systemd-socket-proxyd.xml
index 737f05ee93..1705374826 100644
--- a/man/systemd-socket-proxyd.xml
+++ b/man/systemd-socket-proxyd.xml
@@ -3,6 +3,8 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
      "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 David Strauss
diff --git a/man/systemd-suspend.service.xml b/man/systemd-suspend.service.xml
index 2aa172e990..24c213eb74 100644
--- a/man/systemd-suspend.service.xml
+++ b/man/systemd-suspend.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-sysctl.service.xml b/man/systemd-sysctl.service.xml
index ee00e8d262..3251bc6321 100644
--- a/man/systemd-sysctl.service.xml
+++ b/man/systemd-sysctl.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-system-update-generator.xml b/man/systemd-system-update-generator.xml
index 833ed79646..c57dc781db 100644
--- a/man/systemd-system-update-generator.xml
+++ b/man/systemd-system-update-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-system.conf.xml b/man/systemd-system.conf.xml
index 81f1b1ef8d..43715813ed 100644
--- a/man/systemd-system.conf.xml
+++ b/man/systemd-system.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-sysusers.xml b/man/systemd-sysusers.xml
index 990b935cf2..73ba4e4a84 100644
--- a/man/systemd-sysusers.xml
+++ b/man/systemd-sysusers.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/systemd-sysv-generator.xml b/man/systemd-sysv-generator.xml
index 2353eb3efe..3eceb51381 100644
--- a/man/systemd-sysv-generator.xml
+++ b/man/systemd-sysv-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd-timedated.service.xml b/man/systemd-timedated.service.xml
index fee860204d..2dfde3c1b8 100644
--- a/man/systemd-timedated.service.xml
+++ b/man/systemd-timedated.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-timesyncd.service.xml b/man/systemd-timesyncd.service.xml
index 7860c0d4e4..e9b5c25780 100644
--- a/man/systemd-timesyncd.service.xml
+++ b/man/systemd-timesyncd.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Kay Sievers
diff --git a/man/systemd-tmpfiles.xml b/man/systemd-tmpfiles.xml
index 2b8927cb1e..4dd5b3da6c 100644
--- a/man/systemd-tmpfiles.xml
+++ b/man/systemd-tmpfiles.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-tty-ask-password-agent.xml b/man/systemd-tty-ask-password-agent.xml
index 2c114f4631..e934649ed9 100644
--- a/man/systemd-tty-ask-password-agent.xml
+++ b/man/systemd-tty-ask-password-agent.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd-udevd.service.xml b/man/systemd-udevd.service.xml
index 81b957b0c8..12b51a152d 100644
--- a/man/systemd-udevd.service.xml
+++ b/man/systemd-udevd.service.xml
@@ -2,6 +2,27 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2010-2013 Kay Sievers
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refentry id="systemd-udevd.service"
           xmlns:xi="http://www.w3.org/2001/XInclude">
 
diff --git a/man/systemd-update-done.service.xml b/man/systemd-update-done.service.xml
index a2dad39f01..b0dd56fdff 100644
--- a/man/systemd-update-done.service.xml
+++ b/man/systemd-update-done.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/systemd-update-utmp.service.xml b/man/systemd-update-utmp.service.xml
index be7cec236c..286c18ed4c 100644
--- a/man/systemd-update-utmp.service.xml
+++ b/man/systemd-update-utmp.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-user-sessions.service.xml b/man/systemd-user-sessions.service.xml
index 67aba54119..c3eaffa242 100644
--- a/man/systemd-user-sessions.service.xml
+++ b/man/systemd-user-sessions.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-vconsole-setup.service.xml b/man/systemd-vconsole-setup.service.xml
index b8eafcc02e..3b72234b0f 100644
--- a/man/systemd-vconsole-setup.service.xml
+++ b/man/systemd-vconsole-setup.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd-veritysetup-generator.xml b/man/systemd-veritysetup-generator.xml
index 87d66e9ee5..b6b5b3bc51 100644
--- a/man/systemd-veritysetup-generator.xml
+++ b/man/systemd-veritysetup-generator.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/systemd-veritysetup@.service.xml b/man/systemd-veritysetup@.service.xml
index 173e5358e0..55600e9ad5 100644
--- a/man/systemd-veritysetup@.service.xml
+++ b/man/systemd-veritysetup@.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/systemd-volatile-root.service.xml b/man/systemd-volatile-root.service.xml
index b90a3261fa..ee7c8b3762 100644
--- a/man/systemd-volatile-root.service.xml
+++ b/man/systemd-volatile-root.service.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2016 Lennart Poettering
diff --git a/man/systemd.automount.xml b/man/systemd.automount.xml
index 49ea7e510c..b0f5b19372 100644
--- a/man/systemd.automount.xml
+++ b/man/systemd.automount.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.device.xml b/man/systemd.device.xml
index e121e151bc..a275a880e4 100644
--- a/man/systemd.device.xml
+++ b/man/systemd.device.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.environment-generator.xml b/man/systemd.environment-generator.xml
index ff8be92833..7d3551e3f6 100644
--- a/man/systemd.environment-generator.xml
+++ b/man/systemd.environment-generator.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2017 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd.exec.xml b/man/systemd.exec.xml
index 0aa0552f06..af86379bfe 100644
--- a/man/systemd.exec.xml
+++ b/man/systemd.exec.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.generator.xml b/man/systemd.generator.xml
index 1624e52c4d..5227bc0976 100644
--- a/man/systemd.generator.xml
+++ b/man/systemd.generator.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd.journal-fields.xml b/man/systemd.journal-fields.xml
index cab356c5e7..b08ef1777e 100644
--- a/man/systemd.journal-fields.xml
+++ b/man/systemd.journal-fields.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.kill.xml b/man/systemd.kill.xml
index 13b7ab14df..1abcd6d8e7 100644
--- a/man/systemd.kill.xml
+++ b/man/systemd.kill.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/systemd.link.xml b/man/systemd.link.xml
index 99bb6a19fb..162674f769 100644
--- a/man/systemd.link.xml
+++ b/man/systemd.link.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Tom Gundersen
diff --git a/man/systemd.mount.xml b/man/systemd.mount.xml
index 94d657499e..bfe52cda0f 100644
--- a/man/systemd.mount.xml
+++ b/man/systemd.mount.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.netdev.xml b/man/systemd.netdev.xml
index 6f8991b81c..32048054bc 100644
--- a/man/systemd.netdev.xml
+++ b/man/systemd.netdev.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Tom Gundersen
diff --git a/man/systemd.network.xml b/man/systemd.network.xml
index 2fb5886b79..43324b8898 100644
--- a/man/systemd.network.xml
+++ b/man/systemd.network.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Tom Gundersen
diff --git a/man/systemd.nspawn.xml b/man/systemd.nspawn.xml
index 8a59fc78ff..9a6a2351f8 100644
--- a/man/systemd.nspawn.xml
+++ b/man/systemd.nspawn.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 Lennart Poettering
diff --git a/man/systemd.offline-updates.xml b/man/systemd.offline-updates.xml
index 208003bb52..01dd6c55e4 100644
--- a/man/systemd.offline-updates.xml
+++ b/man/systemd.offline-updates.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Lennart Poettering
diff --git a/man/systemd.path.xml b/man/systemd.path.xml
index 9e8f2c66c1..30f295d2d7 100644
--- a/man/systemd.path.xml
+++ b/man/systemd.path.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.preset.xml b/man/systemd.preset.xml
index 92eb4e8280..482856221c 100644
--- a/man/systemd.preset.xml
+++ b/man/systemd.preset.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2011 Lennart Poettering
diff --git a/man/systemd.resource-control.xml b/man/systemd.resource-control.xml
index 72130672cb..1ab13ea00b 100644
--- a/man/systemd.resource-control.xml
+++ b/man/systemd.resource-control.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd.scope.xml b/man/systemd.scope.xml
index e41493cdd3..092361c6b0 100644
--- a/man/systemd.scope.xml
+++ b/man/systemd.scope.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd.service.xml b/man/systemd.service.xml
index 43c6435dcb..fe83581b6e 100644
--- a/man/systemd.service.xml
+++ b/man/systemd.service.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.slice.xml b/man/systemd.slice.xml
index 6906321e81..d67cce102a 100644
--- a/man/systemd.slice.xml
+++ b/man/systemd.slice.xml
@@ -3,6 +3,8 @@
 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2013 Zbigniew Jędrzejewski-Szmek
diff --git a/man/systemd.socket.xml b/man/systemd.socket.xml
index 68d01cccc5..a1943f65ab 100644
--- a/man/systemd.socket.xml
+++ b/man/systemd.socket.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.special.xml b/man/systemd.special.xml
index b6522c5060..0033332d6d 100644
--- a/man/systemd.special.xml
+++ b/man/systemd.special.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.swap.xml b/man/systemd.swap.xml
index 254389e774..707b04b208 100644
--- a/man/systemd.swap.xml
+++ b/man/systemd.swap.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.target.xml b/man/systemd.target.xml
index bc7f846c88..4daa9f52fd 100644
--- a/man/systemd.target.xml
+++ b/man/systemd.target.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.time.xml b/man/systemd.time.xml
index a4f6a785d5..a2fff2d101 100644
--- a/man/systemd.time.xml
+++ b/man/systemd.time.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml
index b8f921f3af..5b1bc8b521 100644
--- a/man/systemd.timer.xml
+++ b/man/systemd.timer.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.unit.xml b/man/systemd.unit.xml
index 4f39505aed..18ad2b5f59 100644
--- a/man/systemd.unit.xml
+++ b/man/systemd.unit.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/systemd.xml b/man/systemd.xml
index b455b605cb..70b456861d 100644
--- a/man/systemd.xml
+++ b/man/systemd.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/sysusers.d.xml b/man/sysusers.d.xml
index fbe97544d7..38b749cf15 100644
--- a/man/sysusers.d.xml
+++ b/man/sysusers.d.xml
@@ -2,6 +2,8 @@
 <!--*-nxml-*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/telinit.xml b/man/telinit.xml
index bdd22a6ce8..70044cc1da 100644
--- a/man/telinit.xml
+++ b/man/telinit.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/man/timedatectl.xml b/man/timedatectl.xml
index 80f63e8918..dba94d8831 100644
--- a/man/timedatectl.xml
+++ b/man/timedatectl.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2012 Lennart Poettering
diff --git a/man/timesyncd.conf.xml b/man/timesyncd.conf.xml
index d68d9bdd76..812b16e1b9 100644
--- a/man/timesyncd.conf.xml
+++ b/man/timesyncd.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Lennart Poettering
diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml
index 68ae43eb90..793c124007 100644
--- a/man/tmpfiles.d.xml
+++ b/man/tmpfiles.d.xml
@@ -1,6 +1,8 @@
 <?xml version='1.0'?> <!--*- Mode: nxml; nxml-child-indent: 2; indent-tabs-mode: nil -*-->
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Brandon Philips
diff --git a/man/udev.conf.xml b/man/udev.conf.xml
index e104e53f5d..2339e8b9d3 100644
--- a/man/udev.conf.xml
+++ b/man/udev.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2014 Zbigniew Jędrzejewski-Szmek
diff --git a/man/udev.xml b/man/udev.xml
index 3359fb0865..7b42d2326b 100644
--- a/man/udev.xml
+++ b/man/udev.xml
@@ -2,6 +2,28 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2012 Kay Sievers
+  Copyright 2014 Jason St. John
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refentry id="udev">
   <refentryinfo>
     <title>udev</title>
diff --git a/man/udev_device_get_syspath.xml b/man/udev_device_get_syspath.xml
index 014f43b21c..1eb029f8f9 100644
--- a/man/udev_device_get_syspath.xml
+++ b/man/udev_device_get_syspath.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_device_has_tag.xml b/man/udev_device_has_tag.xml
index 480257343c..cdfcd7b727 100644
--- a/man/udev_device_has_tag.xml
+++ b/man/udev_device_has_tag.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_device_new_from_syspath.xml b/man/udev_device_new_from_syspath.xml
index 0bb71c8e91..13f1b4ccef 100644
--- a/man/udev_device_new_from_syspath.xml
+++ b/man/udev_device_new_from_syspath.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_enumerate_add_match_subsystem.xml b/man/udev_enumerate_add_match_subsystem.xml
index 5acce00bb0..fee861c65d 100644
--- a/man/udev_enumerate_add_match_subsystem.xml
+++ b/man/udev_enumerate_add_match_subsystem.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_enumerate_new.xml b/man/udev_enumerate_new.xml
index b5856c5577..e195ad5105 100644
--- a/man/udev_enumerate_new.xml
+++ b/man/udev_enumerate_new.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_enumerate_scan_devices.xml b/man/udev_enumerate_scan_devices.xml
index e0b6bfba32..3abfcef84e 100644
--- a/man/udev_enumerate_scan_devices.xml
+++ b/man/udev_enumerate_scan_devices.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_list_entry.xml b/man/udev_list_entry.xml
index a1b531d52a..12b48357ff 100644
--- a/man/udev_list_entry.xml
+++ b/man/udev_list_entry.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_monitor_filter_update.xml b/man/udev_monitor_filter_update.xml
index f129595618..3590a3ccd6 100644
--- a/man/udev_monitor_filter_update.xml
+++ b/man/udev_monitor_filter_update.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_monitor_new_from_netlink.xml b/man/udev_monitor_new_from_netlink.xml
index d73a4acaec..90ce121611 100644
--- a/man/udev_monitor_new_from_netlink.xml
+++ b/man/udev_monitor_new_from_netlink.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_monitor_receive_device.xml b/man/udev_monitor_receive_device.xml
index 7e842f88df..abc9615eb5 100644
--- a/man/udev_monitor_receive_device.xml
+++ b/man/udev_monitor_receive_device.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udev_new.xml b/man/udev_new.xml
index 587835a3ca..b4520d7e36 100644
--- a/man/udev_new.xml
+++ b/man/udev_new.xml
@@ -6,6 +6,8 @@
 ]>
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2015 David Herrmann <dh.herrmann@gmail.com>
diff --git a/man/udevadm.xml b/man/udevadm.xml
index 7ace4f9826..471108642b 100644
--- a/man/udevadm.xml
+++ b/man/udevadm.xml
@@ -2,6 +2,27 @@
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2010-2013 Kay Sievers
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <refentry id="udevadm">
   <refentryinfo>
     <title>udevadm</title>
diff --git a/man/user-system-options.xml b/man/user-system-options.xml
index 8616c54249..d6a5eeffb7 100644
--- a/man/user-system-options.xml
+++ b/man/user-system-options.xml
@@ -2,6 +2,28 @@
 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
           "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd">
 
+<!--
+  SPDX-License-Identifier: LGPL-2.1+
+
+  This file is part of systemd.
+
+  Copyright 2014 Zbigniew Jędrzejewski-Szmek
+  Copyright 2014 Lennart Poettering
+
+  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.
+
+  systemd is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+-->
+
 <variablelist>
   <varlistentry id='user'>
     <term><option>--user</option></term>
diff --git a/man/vconsole.conf.xml b/man/vconsole.conf.xml
index 4a6672cbae..fecbfd82bc 100644
--- a/man/vconsole.conf.xml
+++ b/man/vconsole.conf.xml
@@ -3,6 +3,8 @@
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   Copyright 2010 Lennart Poettering
diff --git a/meson.build b/meson.build
index e935a09374..7d44a10746 100644
--- a/meson.build
+++ b/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 project('systemd', 'c',
         version : '235',
         license : 'LGPLv2+',
diff --git a/meson_options.txt b/meson_options.txt
index 037c298887..498a32ab11 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -1,4 +1,20 @@
 # -*- mode: meson -*-
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
 
 option('split-usr', type : 'boolean', value : false,
        description : '''assume that /bin, /sbin aren't symlinks into /usr''')
diff --git a/modprobe.d/systemd.conf b/modprobe.d/systemd.conf
index 3b0a49a0e6..0c4a3eaa3a 100644
--- a/modprobe.d/systemd.conf
+++ b/modprobe.d/systemd.conf
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/network/80-container-host0.network b/network/80-container-host0.network
index b012cf98cb..44c59b7dde 100644
--- a/network/80-container-host0.network
+++ b/network/80-container-host0.network
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/network/80-container-ve.network b/network/80-container-ve.network
index ac796bfb07..8a8df2fcd3 100644
--- a/network/80-container-ve.network
+++ b/network/80-container-ve.network
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/network/80-container-vz.network b/network/80-container-vz.network
index 3d532d6f60..4d4482b33a 100644
--- a/network/80-container-vz.network
+++ b/network/80-container-vz.network
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/network/99-default.link b/network/99-default.link
index 79538f9b29..561bf329e4 100644
--- a/network/99-default.link
+++ b/network/99-default.link
@@ -1,3 +1,12 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
+#  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.
+
 [Link]
 NamePolicy=kernel database onboard slot path
 MACAddressPolicy=persistent
diff --git a/network/meson.build b/network/meson.build
index 4c33e45a16..fb17e1632e 100644
--- a/network/meson.build
+++ b/network/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 if conf.get('ENABLE_NETWORKD') == 1
         install_data('80-container-host0.network',
                      '80-container-ve.network',
diff --git a/po/be.po b/po/be.po
index 2f60eb2eba..ce8f1223cd 100644
--- a/po/be.po
+++ b/po/be.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Belarusian translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/be@latin.po b/po/be@latin.po
index 121696a316..36eb347ae1 100644
--- a/po/be@latin.po
+++ b/po/be@latin.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Belarusian translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/bg.po b/po/bg.po
index 5f92f8e2e7..b395cc2ca7 100644
--- a/po/bg.po
+++ b/po/bg.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Bulgarian translation of systemd po-file.
 # Copyright (C) 2016 Alexander Shopov <ash@kambanaria.org>
 # This file is distributed under the same license as the systemd package.
diff --git a/po/ca.po b/po/ca.po
index 30fdea0cf6..a625dd6404 100644
--- a/po/ca.po
+++ b/po/ca.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Catalan translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/cs.po b/po/cs.po
index 32d9709232..332dc3cef6 100644
--- a/po/cs.po
+++ b/po/cs.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Czech translation for systemd.
 # Copyright (C) 2016-2017 systemd's author and translators.
 # This file is distributed under the same license as the systemd package.
diff --git a/po/da.po b/po/da.po
index a5be57940f..187103ce9e 100644
--- a/po/da.po
+++ b/po/da.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Danish translation for systemd.
 # Copyright (C) 2014 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/de.po b/po/de.po
index 72075e81fd..bb431fe4a7 100644
--- a/po/de.po
+++ b/po/de.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # German translation for systemd.
 # Copyright (C) 2014 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/el.po b/po/el.po
index 94c9986d60..0e7db7fb15 100644
--- a/po/el.po
+++ b/po/el.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Greek translation for systemd.
 # Copyright (C) 2014 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/es.po b/po/es.po
index 6642351f68..705a47e354 100644
--- a/po/es.po
+++ b/po/es.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Spanish translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/fr.po b/po/fr.po
index f4c6bfdfe6..c300774035 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # French translations for systemd package
 # Traductions françaises du paquet systemd.
 # This file is distributed under the same license as the systemd package.
diff --git a/po/gl.po b/po/gl.po
index 59d92e1f7d..92000f5956 100644
--- a/po/gl.po
+++ b/po/gl.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Copyright (C) 2015
 # This file is distributed under the same license as the systemd package.
 # Fran Dieguez <frandieguez@gnome.org>, 2015.
diff --git a/po/hr.po b/po/hr.po
index e98e88aeb7..2f282cdfca 100644
--- a/po/hr.po
+++ b/po/hr.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # SOME DESCRIPTIVE TITLE.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
diff --git a/po/hu.po b/po/hu.po
index b92921707f..77b7a00a69 100644
--- a/po/hu.po
+++ b/po/hu.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Hungarian translation of systemd
 # Copyright (C) 2015, 2016. Free Software Foundation, Inc.
 # This file is distributed under the same license as the systemd package.
diff --git a/po/id.po b/po/id.po
index 72eb94c7ec..f7860e6a3c 100644
--- a/po/id.po
+++ b/po/id.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Indonesian translation for systemd.
 # Copyright (C) 2014 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/it.po b/po/it.po
index 7afa5c3b9c..0ce48591c3 100644
--- a/po/it.po
+++ b/po/it.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Italian translations for systemd package
 # Traduzione in italiano per il pacchetto systemd
 # This file is distributed under the same license as the systemd package.
diff --git a/po/ko.po b/po/ko.po
index e78ad2ef87..7a1e9e1c68 100644
--- a/po/ko.po
+++ b/po/ko.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Korean translation for the systemd.
 # Copyright (C) 2015 systemd author and translators.
 # This file is distributed under the same license as the systemd package.
diff --git a/po/meson.build b/po/meson.build
index 91b73ea4f2..7ba08fba18 100644
--- a/po/meson.build
+++ b/po/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 i18n = import('i18n')
 i18n.gettext(meson.project_name(), preset: 'glib')
 
diff --git a/po/pl.po b/po/pl.po
index 0c8bec37dd..2e9d134f20 100644
--- a/po/pl.po
+++ b/po/pl.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Polish translation for systemd.
 # Copyright © 2011-2017 the systemd authors.
 # This file is distributed under the same license as the systemd package.
diff --git a/po/pt_BR.po b/po/pt_BR.po
index a087a4786b..acc03af910 100644
--- a/po/pt_BR.po
+++ b/po/pt_BR.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Brazilian Portuguese translation for systemd.
 # Copyright (C) 2017 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/ro.po b/po/ro.po
index c5b6758b90..d9109fc040 100644
--- a/po/ro.po
+++ b/po/ro.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Romanian translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/ru.po b/po/ru.po
index d2d866b4f4..3cbf13dab1 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # translation of ru.po to Rissian
 # Julia Dronova <juliette.tux@gmail.com>, 2013.
 # Sergey Ptashnick <0comffdiz@inbox.ru>, 2013-2017.
diff --git a/po/sk.po b/po/sk.po
index 84dd7326fe..e1747d8caa 100644
--- a/po/sk.po
+++ b/po/sk.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Slovak translation for systemd.
 # Copyright (C) 2017 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/sr.po b/po/sr.po
index 7f9b2b31cd..c20bec8834 100644
--- a/po/sr.po
+++ b/po/sr.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # SOME DESCRIPTIVE TITLE.
 # Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
 # This file is distributed under the same license as the PACKAGE package.
diff --git a/po/sv.po b/po/sv.po
index 1de9b4650d..3ddf7b24bf 100644
--- a/po/sv.po
+++ b/po/sv.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Swedish translation for systemd.
 # Copyright © 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/tr.po b/po/tr.po
index 262ca906d9..71b65eaf7e 100644
--- a/po/tr.po
+++ b/po/tr.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Turkish translation for systemd.
 # Copyright (C) 2014-2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/uk.po b/po/uk.po
index 66044b8686..31e5f55beb 100644
--- a/po/uk.po
+++ b/po/uk.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Ukrainian translation for systemd.
 # Copyright (C) 2014 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/zh_CN.po b/po/zh_CN.po
index 10c53d4538..7fbbcb1925 100644
--- a/po/zh_CN.po
+++ b/po/zh_CN.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Simplified Chinese translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/po/zh_TW.po b/po/zh_TW.po
index affea9126e..c2b3b08914 100644
--- a/po/zh_TW.po
+++ b/po/zh_TW.po
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Traditional Chinese translation for systemd.
 # Copyright (C) 2015 systemd's COPYRIGHT HOLDER
 # This file is distributed under the same license as the systemd package.
diff --git a/rules/99-systemd.rules.in b/rules/99-systemd.rules.in
index 62f0b98cd3..419ca4ed87 100644
--- a/rules/99-systemd.rules.in
+++ b/rules/99-systemd.rules.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/rules/meson.build b/rules/meson.build
index 1bb43147e3..56a270712a 100644
--- a/rules/meson.build
+++ b/rules/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 rules = files('''
         60-block.rules
         60-cdrom_id.rules
diff --git a/shell-completion/bash/bootctl b/shell-completion/bash/bootctl
index c86ec7edc9..34b1b552d9 100644
--- a/shell-completion/bash/bootctl
+++ b/shell-completion/bash/bootctl
@@ -1,4 +1,5 @@
 # bootctl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/busctl b/shell-completion/bash/busctl
index 6a770b1b84..aa4c1d74d9 100644
--- a/shell-completion/bash/busctl
+++ b/shell-completion/bash/busctl
@@ -1,4 +1,5 @@
 # busctl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/coredumpctl b/shell-completion/bash/coredumpctl
index 87fe473e09..842e4943ff 100644
--- a/shell-completion/bash/coredumpctl
+++ b/shell-completion/bash/coredumpctl
@@ -1,4 +1,5 @@
 # coredumpctl(1) completion                       -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/hostnamectl b/shell-completion/bash/hostnamectl
index 7cf8b6f631..a35ac7f9a0 100644
--- a/shell-completion/bash/hostnamectl
+++ b/shell-completion/bash/hostnamectl
@@ -1,4 +1,5 @@
 # hostnamectl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/journalctl b/shell-completion/bash/journalctl
index c90a114497..03ee733d7e 100644
--- a/shell-completion/bash/journalctl
+++ b/shell-completion/bash/journalctl
@@ -1,4 +1,5 @@
 # journalctl(1) completion                                -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/kernel-install b/shell-completion/bash/kernel-install
index 7cd2494cf7..5a78528d36 100644
--- a/shell-completion/bash/kernel-install
+++ b/shell-completion/bash/kernel-install
@@ -1,4 +1,5 @@
 # kernel-install(8) completion                                   -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/localectl b/shell-completion/bash/localectl
index e0c06a794e..97c91a4ce2 100644
--- a/shell-completion/bash/localectl
+++ b/shell-completion/bash/localectl
@@ -1,4 +1,5 @@
 # localectl(1) completion                                 -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/loginctl b/shell-completion/bash/loginctl
index 776eca4e62..d8d14f889a 100644
--- a/shell-completion/bash/loginctl
+++ b/shell-completion/bash/loginctl
@@ -1,4 +1,5 @@
 # loginctl(1) completion                                  -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/machinectl b/shell-completion/bash/machinectl
index aebe48304d..7865a99882 100644
--- a/shell-completion/bash/machinectl
+++ b/shell-completion/bash/machinectl
@@ -1,4 +1,5 @@
 # machinectl(1) completion                      -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/meson.build b/shell-completion/bash/meson.build
index 11238781c6..347518cd46 100644
--- a/shell-completion/bash/meson.build
+++ b/shell-completion/bash/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 bashcompletiondir = get_option('bashcompletiondir')
 if bashcompletiondir == ''
         bash_completion = dependency('bash-completion', required : false)
diff --git a/shell-completion/bash/networkctl b/shell-completion/bash/networkctl
index 68e3338471..0c36aaf464 100644
--- a/shell-completion/bash/networkctl
+++ b/shell-completion/bash/networkctl
@@ -1,4 +1,5 @@
 # networkctl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemctl.in b/shell-completion/bash/systemctl.in
index bde28efc3e..5a353f7107 100644
--- a/shell-completion/bash/systemctl.in
+++ b/shell-completion/bash/systemctl.in
@@ -1,4 +1,5 @@
 # systemctl(1) completion                                 -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-analyze b/shell-completion/bash/systemd-analyze
index 8c56a1cf9a..45ff7a1f3e 100644
--- a/shell-completion/bash/systemd-analyze
+++ b/shell-completion/bash/systemd-analyze
@@ -1,4 +1,5 @@
 # systemd-analyze(1) completion                      -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-cat b/shell-completion/bash/systemd-cat
index 8d84042af1..20ff672059 100644
--- a/shell-completion/bash/systemd-cat
+++ b/shell-completion/bash/systemd-cat
@@ -1,4 +1,5 @@
 # systemd-cat(1) completion                  -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-cgls b/shell-completion/bash/systemd-cgls
index 0570438660..0f579a6e67 100644
--- a/shell-completion/bash/systemd-cgls
+++ b/shell-completion/bash/systemd-cgls
@@ -1,4 +1,5 @@
 # systemd-cgls(1) completion                  -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-cgtop b/shell-completion/bash/systemd-cgtop
index f1ed22fd55..7a1b4acc7c 100644
--- a/shell-completion/bash/systemd-cgtop
+++ b/shell-completion/bash/systemd-cgtop
@@ -1,4 +1,5 @@
 # systemd-cgtop(1) completion                  -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-delta b/shell-completion/bash/systemd-delta
index cb1732895f..d3933437b3 100644
--- a/shell-completion/bash/systemd-delta
+++ b/shell-completion/bash/systemd-delta
@@ -1,4 +1,5 @@
 # systemd-delta(1) completion                      -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-detect-virt b/shell-completion/bash/systemd-detect-virt
index df06c29841..21dca2b966 100644
--- a/shell-completion/bash/systemd-detect-virt
+++ b/shell-completion/bash/systemd-detect-virt
@@ -1,4 +1,5 @@
 # systemd-detect-virt(1) completion             -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-nspawn b/shell-completion/bash/systemd-nspawn
index ea4a5e1f43..4f2fbef84f 100644
--- a/shell-completion/bash/systemd-nspawn
+++ b/shell-completion/bash/systemd-nspawn
@@ -1,4 +1,5 @@
 # systemd-nspawn(1) completion                  -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-path b/shell-completion/bash/systemd-path
index 2f0c5f5bd7..5d99775c2d 100644
--- a/shell-completion/bash/systemd-path
+++ b/shell-completion/bash/systemd-path
@@ -1,4 +1,5 @@
 # systemd-path(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-resolve b/shell-completion/bash/systemd-resolve
index f59482fe23..3f789e80d0 100644
--- a/shell-completion/bash/systemd-resolve
+++ b/shell-completion/bash/systemd-resolve
@@ -1,4 +1,5 @@
 # systemd-resolve(1) completion                             -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/systemd-run b/shell-completion/bash/systemd-run
index 4116ba7eca..125cd306f0 100644
--- a/shell-completion/bash/systemd-run
+++ b/shell-completion/bash/systemd-run
@@ -1,4 +1,5 @@
 # systemd-run(1) completion                       -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/timedatectl b/shell-completion/bash/timedatectl
index a57fbd2546..b9d00811e3 100644
--- a/shell-completion/bash/timedatectl
+++ b/shell-completion/bash/timedatectl
@@ -1,4 +1,5 @@
 # timedatectl(1) completion                               -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/bash/udevadm b/shell-completion/bash/udevadm
index b828b8dd7c..744a38826b 100644
--- a/shell-completion/bash/udevadm
+++ b/shell-completion/bash/udevadm
@@ -1,4 +1,5 @@
 # udevadm(8) completion                                   -*- shell-script -*-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/shell-completion/zsh/_bootctl b/shell-completion/zsh/_bootctl
index 0e1b0a5562..f107005814 100644
--- a/shell-completion/zsh/_bootctl
+++ b/shell-completion/zsh/_bootctl
@@ -1,4 +1,5 @@
 #compdef bootctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 (( $+functions[_bootctl_command] )) || _bootctl_command()
 {
diff --git a/shell-completion/zsh/_busctl b/shell-completion/zsh/_busctl
index a425b8c700..883ace47af 100644
--- a/shell-completion/zsh/_busctl
+++ b/shell-completion/zsh/_busctl
@@ -1,4 +1,5 @@
 #compdef busctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 # busctl(1) completion                               -*- shell-script -*-
 #
diff --git a/shell-completion/zsh/_coredumpctl b/shell-completion/zsh/_coredumpctl
index e469bca958..ea8cfb2dec 100644
--- a/shell-completion/zsh/_coredumpctl
+++ b/shell-completion/zsh/_coredumpctl
@@ -1,4 +1,5 @@
 #compdef coredumpctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _coredumpctl_command(){
     local -a _coredumpctl_cmds
diff --git a/shell-completion/zsh/_hostnamectl b/shell-completion/zsh/_hostnamectl
index 8c4a354af2..ea86863e5a 100644
--- a/shell-completion/zsh/_hostnamectl
+++ b/shell-completion/zsh/_hostnamectl
@@ -1,4 +1,5 @@
 #compdef hostnamectl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _hostnamectl_set-hostname() {
     if (( CURRENT <= 3 )); then
diff --git a/shell-completion/zsh/_journalctl b/shell-completion/zsh/_journalctl
index 4a78a2e946..4bffabba96 100644
--- a/shell-completion/zsh/_journalctl
+++ b/shell-completion/zsh/_journalctl
@@ -1,4 +1,5 @@
 #compdef journalctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _list_fields() {
     local -a journal_fields
diff --git a/shell-completion/zsh/_kernel-install b/shell-completion/zsh/_kernel-install
index 4fdd3a4ae7..6358a64589 100644
--- a/shell-completion/zsh/_kernel-install
+++ b/shell-completion/zsh/_kernel-install
@@ -1,4 +1,5 @@
 #compdef kernel-install
+# SPDX-License-Identifier: LGPL-2.1+
 
 _images(){
     if [[ "$words[2]" == "remove" ]]; then
diff --git a/shell-completion/zsh/_localectl b/shell-completion/zsh/_localectl
index 54c2d456e4..e5ec65b53b 100644
--- a/shell-completion/zsh/_localectl
+++ b/shell-completion/zsh/_localectl
@@ -1,4 +1,5 @@
 #compdef localectl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _localectl_set-locale() {
     local -a _locales locale_fields
diff --git a/shell-completion/zsh/_loginctl b/shell-completion/zsh/_loginctl
index 6f6ff6e314..03dde9a891 100644
--- a/shell-completion/zsh/_loginctl
+++ b/shell-completion/zsh/_loginctl
@@ -1,4 +1,5 @@
 #compdef loginctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _loginctl_all_sessions() {
   local session description
diff --git a/shell-completion/zsh/_machinectl b/shell-completion/zsh/_machinectl
index 92d77109a5..933f4d2e6a 100644
--- a/shell-completion/zsh/_machinectl
+++ b/shell-completion/zsh/_machinectl
@@ -1,4 +1,5 @@
 #compdef machinectl
+# SPDX-License-Identifier: LGPL-2.1+
 
 __get_available_machines () {
     machinectl --no-legend list-images | {while read -r a b; do echo $a; done;}
diff --git a/shell-completion/zsh/_networkctl b/shell-completion/zsh/_networkctl
index acf7463edb..ea485d653c 100644
--- a/shell-completion/zsh/_networkctl
+++ b/shell-completion/zsh/_networkctl
@@ -1,4 +1,5 @@
 #compdef networkctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _networkctl_command(){
     local -a _networkctl_cmds
diff --git a/shell-completion/zsh/_sd_hosts_or_user_at_host b/shell-completion/zsh/_sd_hosts_or_user_at_host
index 282f7328e4..11f94f1976 100644
--- a/shell-completion/zsh/_sd_hosts_or_user_at_host
+++ b/shell-completion/zsh/_sd_hosts_or_user_at_host
@@ -1,4 +1,5 @@
 #autoload
+# SPDX-License-Identifier: LGPL-2.1+
 
 _alternative \
   'users-hosts:: _user_at_host' \
diff --git a/shell-completion/zsh/_sd_machines b/shell-completion/zsh/_sd_machines
index a0039ee0f8..ab35cf84b3 100644
--- a/shell-completion/zsh/_sd_machines
+++ b/shell-completion/zsh/_sd_machines
@@ -1,4 +1,5 @@
 #autoload
+# SPDX-License-Identifier: LGPL-2.1+
 __get_machines () {
         machinectl --full --no-legend --no-pager list |  {while read -r a b; do echo $a; done;};
 }
diff --git a/shell-completion/zsh/_sd_outputmodes b/shell-completion/zsh/_sd_outputmodes
index 2948f40130..3b8850b3f0 100644
--- a/shell-completion/zsh/_sd_outputmodes
+++ b/shell-completion/zsh/_sd_outputmodes
@@ -1,4 +1,5 @@
 #autoload
+# SPDX-License-Identifier: LGPL-2.1+
 
 local -a _output_opts
 _output_opts=(short short-full short-iso short-iso-precise short-precise short-monotonic short-unix verbose export json json-pretty json-sse cat)
diff --git a/shell-completion/zsh/_sd_unit_files b/shell-completion/zsh/_sd_unit_files
index 5e90ea23c5..cce44423e9 100644
--- a/shell-completion/zsh/_sd_unit_files
+++ b/shell-completion/zsh/_sd_unit_files
@@ -1,4 +1,5 @@
 #autoload
+# SPDX-License-Identifier: LGPL-2.1+
 
 _sd_unit_files() {
     local files expl
diff --git a/shell-completion/zsh/_systemctl.in b/shell-completion/zsh/_systemctl.in
index 489793e8bb..47ec9970e1 100644
--- a/shell-completion/zsh/_systemctl.in
+++ b/shell-completion/zsh/_systemctl.in
@@ -1,4 +1,5 @@
 #compdef systemctl
+# SPDX-License-Identifier: LGPL-2.1+
 
 (( $+functions[_systemctl_command] )) || _systemctl_command()
 {
diff --git a/shell-completion/zsh/_systemd b/shell-completion/zsh/_systemd
index 62114ff095..ccac889244 100644
--- a/shell-completion/zsh/_systemd
+++ b/shell-completion/zsh/_systemd
@@ -1,4 +1,5 @@
 #compdef systemd-cat systemd-ask-password systemd-cgls systemd-cgtop systemd-detect-virt systemd-machine-id-setup systemd-notify systemd-tty-ask-password-agent
+# SPDX-License-Identifier: LGPL-2.1+
 
 local curcontext="$curcontext" state lstate line
 case "$service" in
diff --git a/shell-completion/zsh/_systemd-analyze b/shell-completion/zsh/_systemd-analyze
index 22b4c181a1..ce22217fbc 100644
--- a/shell-completion/zsh/_systemd-analyze
+++ b/shell-completion/zsh/_systemd-analyze
@@ -1,4 +1,5 @@
 #compdef systemd-analyze
+# SPDX-License-Identifier: LGPL-2.1+
 
 _systemd_analyze_set-log-level() {
     local -a _levels
diff --git a/shell-completion/zsh/_systemd-delta b/shell-completion/zsh/_systemd-delta
index 757f1b66fb..44e4cb3791 100644
--- a/shell-completion/zsh/_systemd-delta
+++ b/shell-completion/zsh/_systemd-delta
@@ -1,4 +1,5 @@
 #compdef systemd-delta
+# SPDX-License-Identifier: LGPL-2.1+
 
 _delta_type() {
     local -a _delta_types
diff --git a/shell-completion/zsh/_systemd-inhibit b/shell-completion/zsh/_systemd-inhibit
index 1b3247b2cd..764713e28a 100644
--- a/shell-completion/zsh/_systemd-inhibit
+++ b/shell-completion/zsh/_systemd-inhibit
@@ -1,4 +1,5 @@
 #compdef systemd-inhibit
+# SPDX-License-Identifier: LGPL-2.1+
 
 _systemd_inhibit_command(){
     if (( CURRENT == 1 )); then
diff --git a/shell-completion/zsh/_systemd-nspawn b/shell-completion/zsh/_systemd-nspawn
index 77b2e7cd7c..e0bedee2aa 100644
--- a/shell-completion/zsh/_systemd-nspawn
+++ b/shell-completion/zsh/_systemd-nspawn
@@ -1,4 +1,5 @@
 #compdef systemd-nspawn
+# SPDX-License-Identifier: LGPL-2.1+
 
 _nspawn-caps(){
     local -a _caps
diff --git a/shell-completion/zsh/_systemd-resolve b/shell-completion/zsh/_systemd-resolve
index c318ab50f1..eb7606af30 100644
--- a/shell-completion/zsh/_systemd-resolve
+++ b/shell-completion/zsh/_systemd-resolve
@@ -1,4 +1,5 @@
 #compdef systemd-resolve
+# SPDX-License-Identifier: LGPL-2.1+
 
 #
 # This file is part of systemd.
diff --git a/shell-completion/zsh/_systemd-run b/shell-completion/zsh/_systemd-run
index 5c3e65c223..0ad4b27a6f 100644
--- a/shell-completion/zsh/_systemd-run
+++ b/shell-completion/zsh/_systemd-run
@@ -1,4 +1,5 @@
 #compdef systemd-run
+# SPDX-License-Identifier: LGPL-2.1+
 
 __systemctl() {
         local -a _modes
diff --git a/shell-completion/zsh/_systemd-tmpfiles b/shell-completion/zsh/_systemd-tmpfiles
index 6ff02e5d98..0993bca5a4 100644
--- a/shell-completion/zsh/_systemd-tmpfiles
+++ b/shell-completion/zsh/_systemd-tmpfiles
@@ -1,4 +1,5 @@
 #compdef systemd-tmpfiles
+# SPDX-License-Identifier: LGPL-2.1+
 
 _arguments \
     {-h,--help}'[Show help]' \
diff --git a/shell-completion/zsh/_timedatectl b/shell-completion/zsh/_timedatectl
index dfdcfebb3c..c1ed21e565 100644
--- a/shell-completion/zsh/_timedatectl
+++ b/shell-completion/zsh/_timedatectl
@@ -1,4 +1,5 @@
 #compdef timedatectl
+# SPDX-License-Identifier: LGPL-2.1+
 
 _timedatectl_set-timezone(){
     local -a _timezones
diff --git a/shell-completion/zsh/_udevadm b/shell-completion/zsh/_udevadm
index bb23e64d24..c6bd685aee 100644
--- a/shell-completion/zsh/_udevadm
+++ b/shell-completion/zsh/_udevadm
@@ -1,4 +1,5 @@
 #compdef udevadm
+# SPDX-License-Identifier: LGPL-2.1+
 
 _udevadm_info(){
     _arguments \
diff --git a/shell-completion/zsh/meson.build b/shell-completion/zsh/meson.build
index 4e7b33a8a7..cf3c556f13 100644
--- a/shell-completion/zsh/meson.build
+++ b/shell-completion/zsh/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 zshcompletiondir = get_option('zshcompletiondir')
 if zshcompletiondir == ''
         zshcompletiondir = join_paths(datadir, 'zsh/site-functions')
diff --git a/src/ac-power/ac-power.c b/src/ac-power/ac-power.c
index c5277884a8..6d3172d5c1 100644
--- a/src/ac-power/ac-power.c
+++ b/src/ac-power/ac-power.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/activate/activate.c b/src/activate/activate.c
index 4b82dca491..83807efdcf 100644
--- a/src/activate/activate.c
+++ b/src/activate/activate.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/analyze/analyze-verify.c b/src/analyze/analyze-verify.c
index f34c24c53a..3128d152ac 100644
--- a/src/analyze/analyze-verify.c
+++ b/src/analyze/analyze-verify.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/analyze/analyze-verify.h b/src/analyze/analyze-verify.h
index d5466ecdf9..a895130508 100644
--- a/src/analyze/analyze-verify.h
+++ b/src/analyze/analyze-verify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/analyze/analyze.c b/src/analyze/analyze.c
index 9fcc20dba3..913aa35016 100644
--- a/src/analyze/analyze.c
+++ b/src/analyze/analyze.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/analyze/meson.build b/src/analyze/meson.build
index fcbd814233..b32311413b 100644
--- a/src/analyze/meson.build
+++ b/src/analyze/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_analyze_sources = files('''
         analyze.c
         analyze-verify.c
diff --git a/src/ask-password/ask-password.c b/src/ask-password/ask-password.c
index 6d53dd982c..48cfaa7acc 100644
--- a/src/ask-password/ask-password.c
+++ b/src/ask-password/ask-password.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/backlight/backlight.c b/src/backlight/backlight.c
index c909b5bb51..8fedf8ebbc 100644
--- a/src/backlight/backlight.c
+++ b/src/backlight/backlight.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/af-list.c b/src/basic/af-list.c
index 4b291d177b..fa81a69e0e 100644
--- a/src/basic/af-list.c
+++ b/src/basic/af-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/af-list.h b/src/basic/af-list.h
index 6a4cc03839..65656022cc 100644
--- a/src/basic/af-list.h
+++ b/src/basic/af-list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/alloc-util.c b/src/basic/alloc-util.c
index 948389f276..2584cb07fc 100644
--- a/src/basic/alloc-util.c
+++ b/src/basic/alloc-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/alloc-util.h b/src/basic/alloc-util.h
index 0a89691bae..38d1546b55 100644
--- a/src/basic/alloc-util.h
+++ b/src/basic/alloc-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/architecture.c b/src/basic/architecture.c
index 2518dd8112..46157061ed 100644
--- a/src/basic/architecture.c
+++ b/src/basic/architecture.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/architecture.h b/src/basic/architecture.h
index 40a2ce6448..c81a1c2f44 100644
--- a/src/basic/architecture.h
+++ b/src/basic/architecture.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/arphrd-list.c b/src/basic/arphrd-list.c
index 2d598dc66f..5df93a59c1 100644
--- a/src/basic/arphrd-list.c
+++ b/src/basic/arphrd-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/arphrd-list.h b/src/basic/arphrd-list.h
index c0f8758dbe..2222e92c8a 100644
--- a/src/basic/arphrd-list.h
+++ b/src/basic/arphrd-list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/async.c b/src/basic/async.c
index a1f163f27b..d368b92522 100644
--- a/src/basic/async.c
+++ b/src/basic/async.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/async.h b/src/basic/async.h
index 9bd13ff6e0..7eac54d8b2 100644
--- a/src/basic/async.h
+++ b/src/basic/async.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/audit-util.c b/src/basic/audit-util.c
index 24a6c8a936..6a93c9109c 100644
--- a/src/basic/audit-util.c
+++ b/src/basic/audit-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/audit-util.h b/src/basic/audit-util.h
index 3088951326..dba15de8ee 100644
--- a/src/basic/audit-util.h
+++ b/src/basic/audit-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/barrier.c b/src/basic/barrier.c
index 0c44e47b12..cd3638b676 100644
--- a/src/basic/barrier.c
+++ b/src/basic/barrier.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/barrier.h b/src/basic/barrier.h
index fbc2d9d98d..7260d751c4 100644
--- a/src/basic/barrier.h
+++ b/src/basic/barrier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/bitmap.c b/src/basic/bitmap.c
index f6212e6151..f1aa7c5e51 100644
--- a/src/basic/bitmap.c
+++ b/src/basic/bitmap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/bitmap.h b/src/basic/bitmap.h
index 63fdbe8bea..f1d822c643 100644
--- a/src/basic/bitmap.h
+++ b/src/basic/bitmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/blkid-util.h b/src/basic/blkid-util.h
index 53340ec6f3..3aba76b79e 100644
--- a/src/basic/blkid-util.h
+++ b/src/basic/blkid-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/bpf-program.c b/src/basic/bpf-program.c
index ce6f9e4409..3690f812ae 100644
--- a/src/basic/bpf-program.c
+++ b/src/basic/bpf-program.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/bpf-program.h b/src/basic/bpf-program.h
index 35a41ffc44..146350d18e 100644
--- a/src/basic/bpf-program.h
+++ b/src/basic/bpf-program.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/btrfs-util.c b/src/basic/btrfs-util.c
index 783ff13a36..b7e237fc0d 100644
--- a/src/basic/btrfs-util.c
+++ b/src/basic/btrfs-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/btrfs-util.h b/src/basic/btrfs-util.h
index 04a2e1274b..2c78daa37b 100644
--- a/src/basic/btrfs-util.h
+++ b/src/basic/btrfs-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/build.h b/src/basic/build.h
index 9aaa6e3dae..ab2a838ce9 100644
--- a/src/basic/build.h
+++ b/src/basic/build.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/bus-label.c b/src/basic/bus-label.c
index d4531c7947..a072d0ad5d 100644
--- a/src/basic/bus-label.c
+++ b/src/basic/bus-label.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/bus-label.h b/src/basic/bus-label.h
index 600268b767..5c6bc1f267 100644
--- a/src/basic/bus-label.h
+++ b/src/basic/bus-label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/calendarspec.c b/src/basic/calendarspec.c
index 1fc9e9b154..8e406aa643 100644
--- a/src/basic/calendarspec.c
+++ b/src/basic/calendarspec.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/calendarspec.h b/src/basic/calendarspec.h
index 8888251705..bd87794bc4 100644
--- a/src/basic/calendarspec.h
+++ b/src/basic/calendarspec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/cap-list.c b/src/basic/cap-list.c
index 2e9b2d9a55..52b2ce800f 100644
--- a/src/basic/cap-list.c
+++ b/src/basic/cap-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/cap-list.h b/src/basic/cap-list.h
index f9f6b70d80..ca9f4aa970 100644
--- a/src/basic/cap-list.h
+++ b/src/basic/cap-list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/capability-util.c b/src/basic/capability-util.c
index 96c2e992bd..97778c55ab 100644
--- a/src/basic/capability-util.c
+++ b/src/basic/capability-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/capability-util.h b/src/basic/capability-util.h
index 3dc9429153..fd9370ecb7 100644
--- a/src/basic/capability-util.h
+++ b/src/basic/capability-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index b52104768f..8c3d2c5ee6 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/cgroup-util.h b/src/basic/cgroup-util.h
index c549aa4024..c9666075ec 100644
--- a/src/basic/cgroup-util.h
+++ b/src/basic/cgroup-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/chattr-util.c b/src/basic/chattr-util.c
index 2896a729af..3635deee4e 100644
--- a/src/basic/chattr-util.c
+++ b/src/basic/chattr-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/chattr-util.h b/src/basic/chattr-util.h
index 960cf6d5b3..a4ddaeeb8c 100644
--- a/src/basic/chattr-util.h
+++ b/src/basic/chattr-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/clock-util.c b/src/basic/clock-util.c
index 7fe8d35ea5..232a7ad208 100644
--- a/src/basic/clock-util.c
+++ b/src/basic/clock-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/clock-util.h b/src/basic/clock-util.h
index 8830cd2f38..b90c31fb78 100644
--- a/src/basic/clock-util.h
+++ b/src/basic/clock-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/conf-files.c b/src/basic/conf-files.c
index 907d1350fe..c0ac202f57 100644
--- a/src/basic/conf-files.c
+++ b/src/basic/conf-files.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/conf-files.h b/src/basic/conf-files.h
index 20ecf6e5f1..75dfd05e7c 100644
--- a/src/basic/conf-files.h
+++ b/src/basic/conf-files.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/copy.c b/src/basic/copy.c
index e120b9eb4e..0673ecd4a2 100644
--- a/src/basic/copy.c
+++ b/src/basic/copy.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/copy.h b/src/basic/copy.h
index 4f3e11423e..59da4c2425 100644
--- a/src/basic/copy.h
+++ b/src/basic/copy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/cpu-set-util.c b/src/basic/cpu-set-util.c
index aec0edc3dc..271d82d769 100644
--- a/src/basic/cpu-set-util.c
+++ b/src/basic/cpu-set-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/cpu-set-util.h b/src/basic/cpu-set-util.h
index 9b08ba0a67..043a5e4570 100644
--- a/src/basic/cpu-set-util.h
+++ b/src/basic/cpu-set-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/def.h b/src/basic/def.h
index c04e58b57a..b0bd1dfa1c 100644
--- a/src/basic/def.h
+++ b/src/basic/def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/device-nodes.c b/src/basic/device-nodes.c
index 38c0628a90..92e1f7f0bd 100644
--- a/src/basic/device-nodes.c
+++ b/src/basic/device-nodes.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/device-nodes.h b/src/basic/device-nodes.h
index 94f385abcb..1e09bdc830 100644
--- a/src/basic/device-nodes.h
+++ b/src/basic/device-nodes.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/dirent-util.c b/src/basic/dirent-util.c
index 5bf58bcdc3..e2b093bad3 100644
--- a/src/basic/dirent-util.c
+++ b/src/basic/dirent-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/dirent-util.h b/src/basic/dirent-util.h
index 18b9db9b28..94d5ee81a3 100644
--- a/src/basic/dirent-util.h
+++ b/src/basic/dirent-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/env-util.c b/src/basic/env-util.c
index 0da10de0c8..e77f9d6d3f 100644
--- a/src/basic/env-util.c
+++ b/src/basic/env-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/env-util.h b/src/basic/env-util.h
index d5da8cd67b..956a2a8270 100644
--- a/src/basic/env-util.h
+++ b/src/basic/env-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/errno-list.c b/src/basic/errno-list.c
index f0b74753fe..d8eedfc0ad 100644
--- a/src/basic/errno-list.c
+++ b/src/basic/errno-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/errno-list.h b/src/basic/errno-list.h
index c8e5205377..4e9b75a7ea 100644
--- a/src/basic/errno-list.h
+++ b/src/basic/errno-list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/escape.c b/src/basic/escape.c
index 0a6122c64a..7d77aef329 100644
--- a/src/basic/escape.c
+++ b/src/basic/escape.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/escape.h b/src/basic/escape.h
index 6f5cc60bc8..de89f43a82 100644
--- a/src/basic/escape.h
+++ b/src/basic/escape.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/ether-addr-util.c b/src/basic/ether-addr-util.c
index 5697e8d132..d94bdbd149 100644
--- a/src/basic/ether-addr-util.c
+++ b/src/basic/ether-addr-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/ether-addr-util.h b/src/basic/ether-addr-util.h
index 74e125a95f..08d05a136f 100644
--- a/src/basic/ether-addr-util.h
+++ b/src/basic/ether-addr-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/exec-util.c b/src/basic/exec-util.c
index ade8511466..be86336e14 100644
--- a/src/basic/exec-util.c
+++ b/src/basic/exec-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/exec-util.h b/src/basic/exec-util.h
index 72009799b2..d69bec7bc2 100644
--- a/src/basic/exec-util.h
+++ b/src/basic/exec-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/exit-status.c b/src/basic/exit-status.c
index 7cfebbae72..c02681d4cc 100644
--- a/src/basic/exit-status.c
+++ b/src/basic/exit-status.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/exit-status.h b/src/basic/exit-status.h
index 195b3bc486..1e10419f8b 100644
--- a/src/basic/exit-status.h
+++ b/src/basic/exit-status.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/extract-word.c b/src/basic/extract-word.c
index f4ac526eb1..5e42560487 100644
--- a/src/basic/extract-word.c
+++ b/src/basic/extract-word.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/extract-word.h b/src/basic/extract-word.h
index 04746c6d08..300c51bb77 100644
--- a/src/basic/extract-word.h
+++ b/src/basic/extract-word.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/fd-util.c b/src/basic/fd-util.c
index 9d61044c89..0a1786849e 100644
--- a/src/basic/fd-util.c
+++ b/src/basic/fd-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/fd-util.h b/src/basic/fd-util.h
index 34b98d4aec..7893144ed9 100644
--- a/src/basic/fd-util.h
+++ b/src/basic/fd-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/fileio-label.c b/src/basic/fileio-label.c
index ef51c49395..bf5fec1faa 100644
--- a/src/basic/fileio-label.c
+++ b/src/basic/fileio-label.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/fileio-label.h b/src/basic/fileio-label.h
index 9854ea50b9..630ee55bec 100644
--- a/src/basic/fileio-label.h
+++ b/src/basic/fileio-label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/fileio.c b/src/basic/fileio.c
index 9e4c5af975..dcb0b758cc 100644
--- a/src/basic/fileio.c
+++ b/src/basic/fileio.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/fileio.h b/src/basic/fileio.h
index eba05be2a9..3d785eae75 100644
--- a/src/basic/fileio.h
+++ b/src/basic/fileio.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/format-util.h b/src/basic/format-util.h
index ae42a8f89e..d9a78f7811 100644
--- a/src/basic/format-util.h
+++ b/src/basic/format-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/fs-util.c b/src/basic/fs-util.c
index ff8b4e8747..1eaf820afb 100644
--- a/src/basic/fs-util.c
+++ b/src/basic/fs-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/fs-util.h b/src/basic/fs-util.h
index 9849522f5a..a7ba61625d 100644
--- a/src/basic/fs-util.h
+++ b/src/basic/fs-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/glob-util.c b/src/basic/glob-util.c
index f611c42e4c..6e80a1e23b 100644
--- a/src/basic/glob-util.c
+++ b/src/basic/glob-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/glob-util.h b/src/basic/glob-util.h
index e1f6083afa..911e6d2c1a 100644
--- a/src/basic/glob-util.h
+++ b/src/basic/glob-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/hash-funcs.c b/src/basic/hash-funcs.c
index c3a4a011b5..e69f81558d 100644
--- a/src/basic/hash-funcs.c
+++ b/src/basic/hash-funcs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/hash-funcs.h b/src/basic/hash-funcs.h
index 299189d143..959e2c101d 100644
--- a/src/basic/hash-funcs.h
+++ b/src/basic/hash-funcs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/hashmap.c b/src/basic/hashmap.c
index b62e5a2671..cc4423b2af 100644
--- a/src/basic/hashmap.c
+++ b/src/basic/hashmap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/hashmap.h b/src/basic/hashmap.h
index c1089652d3..222da8f6a3 100644
--- a/src/basic/hashmap.h
+++ b/src/basic/hashmap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/hexdecoct.c b/src/basic/hexdecoct.c
index 766770389c..544e61751e 100644
--- a/src/basic/hexdecoct.c
+++ b/src/basic/hexdecoct.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/hexdecoct.h b/src/basic/hexdecoct.h
index 1ba2f69ebd..08d0a52276 100644
--- a/src/basic/hexdecoct.h
+++ b/src/basic/hexdecoct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/hostname-util.c b/src/basic/hostname-util.c
index ea9e77087f..78f18e26bf 100644
--- a/src/basic/hostname-util.c
+++ b/src/basic/hostname-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/hostname-util.h b/src/basic/hostname-util.h
index 7af4e6c7ec..a7d09c910b 100644
--- a/src/basic/hostname-util.h
+++ b/src/basic/hostname-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/in-addr-util.c b/src/basic/in-addr-util.c
index e27faba75f..572e172b33 100644
--- a/src/basic/in-addr-util.c
+++ b/src/basic/in-addr-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/in-addr-util.h b/src/basic/in-addr-util.h
index 59f8eb7edf..acaae6d287 100644
--- a/src/basic/in-addr-util.h
+++ b/src/basic/in-addr-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/io-util.c b/src/basic/io-util.c
index cc6dfa8c1b..98bb1857d9 100644
--- a/src/basic/io-util.c
+++ b/src/basic/io-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/io-util.h b/src/basic/io-util.h
index d9b69adde9..d81610ad21 100644
--- a/src/basic/io-util.h
+++ b/src/basic/io-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/journal-importer.c b/src/basic/journal-importer.c
index e750101165..2afb530bae 100644
--- a/src/basic/journal-importer.c
+++ b/src/basic/journal-importer.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/journal-importer.h b/src/basic/journal-importer.h
index b3e308dd6d..d11caa2396 100644
--- a/src/basic/journal-importer.h
+++ b/src/basic/journal-importer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/khash.c b/src/basic/khash.c
index 84648dc1c9..8122903b09 100644
--- a/src/basic/khash.c
+++ b/src/basic/khash.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/khash.h b/src/basic/khash.h
index 410f3020e0..7041d39993 100644
--- a/src/basic/khash.h
+++ b/src/basic/khash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/label.c b/src/basic/label.c
index f5ab855d32..ce81d286ab 100644
--- a/src/basic/label.c
+++ b/src/basic/label.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/label.h b/src/basic/label.h
index 3e9251aa71..86447c2e98 100644
--- a/src/basic/label.h
+++ b/src/basic/label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/list.h b/src/basic/list.h
index c3771a177f..80800cf43e 100644
--- a/src/basic/list.h
+++ b/src/basic/list.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/locale-util.c b/src/basic/locale-util.c
index 0e546c0507..266cb29936 100644
--- a/src/basic/locale-util.c
+++ b/src/basic/locale-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/locale-util.h b/src/basic/locale-util.h
index 104864501d..60ce017a15 100644
--- a/src/basic/locale-util.h
+++ b/src/basic/locale-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/lockfile-util.c b/src/basic/lockfile-util.c
index 3ee4191e4d..f4761a9d55 100644
--- a/src/basic/lockfile-util.c
+++ b/src/basic/lockfile-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/lockfile-util.h b/src/basic/lockfile-util.h
index 22491ee8e1..1e86ad7442 100644
--- a/src/basic/lockfile-util.h
+++ b/src/basic/lockfile-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/log.c b/src/basic/log.c
index 81e106803f..18a1ea0bdb 100644
--- a/src/basic/log.c
+++ b/src/basic/log.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/log.h b/src/basic/log.h
index e2608b2a92..aa5976c3c0 100644
--- a/src/basic/log.h
+++ b/src/basic/log.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/login-util.c b/src/basic/login-util.c
index 339e94f12d..af4539453a 100644
--- a/src/basic/login-util.c
+++ b/src/basic/login-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/login-util.h b/src/basic/login-util.h
index b01ee25c88..1c558bfe20 100644
--- a/src/basic/login-util.h
+++ b/src/basic/login-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/macro.h b/src/basic/macro.h
index a51562db35..13652fb94d 100644
--- a/src/basic/macro.h
+++ b/src/basic/macro.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/memfd-util.c b/src/basic/memfd-util.c
index 8f4f0e3a24..e7eb895462 100644
--- a/src/basic/memfd-util.c
+++ b/src/basic/memfd-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/memfd-util.h b/src/basic/memfd-util.h
index 46d4989e4c..1d66c98cce 100644
--- a/src/basic/memfd-util.h
+++ b/src/basic/memfd-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/mempool.c b/src/basic/mempool.c
index f95e2beb0f..0da8e1f775 100644
--- a/src/basic/mempool.c
+++ b/src/basic/mempool.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/mempool.h b/src/basic/mempool.h
index 0618b8dd22..c9235c8361 100644
--- a/src/basic/mempool.h
+++ b/src/basic/mempool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/meson.build b/src/basic/meson.build
index 7d12cebdb2..bf11757b74 100644
--- a/src/basic/meson.build
+++ b/src/basic/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 basic_sources_plain = files('''
         MurmurHash2.c
         MurmurHash2.h
diff --git a/src/basic/missing.h b/src/basic/missing.h
index 352d2b024b..3936091ccc 100644
--- a/src/basic/missing.h
+++ b/src/basic/missing.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/missing_syscall.h b/src/basic/missing_syscall.h
index 95a7361531..fd82c11e94 100644
--- a/src/basic/missing_syscall.h
+++ b/src/basic/missing_syscall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/mkdir-label.c b/src/basic/mkdir-label.c
index 731269c81c..16eb7ce265 100644
--- a/src/basic/mkdir-label.c
+++ b/src/basic/mkdir-label.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/mkdir.c b/src/basic/mkdir.c
index fb3a9430ba..4386b38c4a 100644
--- a/src/basic/mkdir.c
+++ b/src/basic/mkdir.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/mkdir.h b/src/basic/mkdir.h
index 4e12b5e165..04a537f8a8 100644
--- a/src/basic/mkdir.h
+++ b/src/basic/mkdir.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/module-util.h b/src/basic/module-util.h
index 20bb2f3bab..07956dbffd 100644
--- a/src/basic/module-util.h
+++ b/src/basic/module-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/mount-util.c b/src/basic/mount-util.c
index c4d451db73..8801e2f8f1 100644
--- a/src/basic/mount-util.c
+++ b/src/basic/mount-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/mount-util.h b/src/basic/mount-util.h
index 1e066d8886..0f53fee2f2 100644
--- a/src/basic/mount-util.h
+++ b/src/basic/mount-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/nss-util.h b/src/basic/nss-util.h
index 9d927a8227..4fc676395f 100644
--- a/src/basic/nss-util.h
+++ b/src/basic/nss-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/ordered-set.c b/src/basic/ordered-set.c
index 2e0bdf6488..afcf2dbd1d 100644
--- a/src/basic/ordered-set.c
+++ b/src/basic/ordered-set.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/ordered-set.h b/src/basic/ordered-set.h
index e1dfc86380..c4dbd79249 100644
--- a/src/basic/ordered-set.h
+++ b/src/basic/ordered-set.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/parse-util.c b/src/basic/parse-util.c
index 9108820ca8..d03f60e01a 100644
--- a/src/basic/parse-util.c
+++ b/src/basic/parse-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/parse-util.h b/src/basic/parse-util.h
index 5f1c850855..1eda1d7f9f 100644
--- a/src/basic/parse-util.h
+++ b/src/basic/parse-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/path-util.c b/src/basic/path-util.c
index 6c06bd2acb..1d6666c2f2 100644
--- a/src/basic/path-util.c
+++ b/src/basic/path-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/path-util.h b/src/basic/path-util.h
index 546246595c..5262017a82 100644
--- a/src/basic/path-util.h
+++ b/src/basic/path-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/prioq.c b/src/basic/prioq.c
index 4570b8e4ba..407b17e9bf 100644
--- a/src/basic/prioq.c
+++ b/src/basic/prioq.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/prioq.h b/src/basic/prioq.h
index 113c73d040..a222955dfe 100644
--- a/src/basic/prioq.h
+++ b/src/basic/prioq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/proc-cmdline.c b/src/basic/proc-cmdline.c
index 8592a428d5..b83a9f625b 100644
--- a/src/basic/proc-cmdline.c
+++ b/src/basic/proc-cmdline.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/proc-cmdline.h b/src/basic/proc-cmdline.h
index ebfed355e9..16ccfbc2cb 100644
--- a/src/basic/proc-cmdline.h
+++ b/src/basic/proc-cmdline.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/process-util.c b/src/basic/process-util.c
index 99b0946a03..b3d96cdb0f 100644
--- a/src/basic/process-util.c
+++ b/src/basic/process-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/process-util.h b/src/basic/process-util.h
index 82af2f9181..d99fb3d6b8 100644
--- a/src/basic/process-util.h
+++ b/src/basic/process-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/random-util.c b/src/basic/random-util.c
index 146c8f55ed..1bc8000896 100644
--- a/src/basic/random-util.c
+++ b/src/basic/random-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/random-util.h b/src/basic/random-util.h
index 804e225fc1..dd8701515e 100644
--- a/src/basic/random-util.h
+++ b/src/basic/random-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/ratelimit.c b/src/basic/ratelimit.c
index 3ca5625e4d..5b684e261a 100644
--- a/src/basic/ratelimit.c
+++ b/src/basic/ratelimit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/ratelimit.h b/src/basic/ratelimit.h
index 9c8dddf5ad..19acf9c854 100644
--- a/src/basic/ratelimit.h
+++ b/src/basic/ratelimit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/raw-clone.h b/src/basic/raw-clone.h
index c6e531ada4..f01b73a8fe 100644
--- a/src/basic/raw-clone.h
+++ b/src/basic/raw-clone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/refcnt.h b/src/basic/refcnt.h
index 1d77a6445a..ae2e446d6c 100644
--- a/src/basic/refcnt.h
+++ b/src/basic/refcnt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/replace-var.c b/src/basic/replace-var.c
index d2642812e7..c73ed9777e 100644
--- a/src/basic/replace-var.c
+++ b/src/basic/replace-var.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/replace-var.h b/src/basic/replace-var.h
index 31eb057803..3d5906198e 100644
--- a/src/basic/replace-var.h
+++ b/src/basic/replace-var.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/rlimit-util.c b/src/basic/rlimit-util.c
index 5c41429f01..00648211d3 100644
--- a/src/basic/rlimit-util.c
+++ b/src/basic/rlimit-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/rlimit-util.h b/src/basic/rlimit-util.h
index d4594eccd6..4494b89c76 100644
--- a/src/basic/rlimit-util.h
+++ b/src/basic/rlimit-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/rm-rf.c b/src/basic/rm-rf.c
index 0bbafb4cd7..2839f37cd9 100644
--- a/src/basic/rm-rf.c
+++ b/src/basic/rm-rf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/rm-rf.h b/src/basic/rm-rf.h
index e13f7003e3..1127e326b2 100644
--- a/src/basic/rm-rf.h
+++ b/src/basic/rm-rf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/securebits-util.c b/src/basic/securebits-util.c
index 011ec36af4..b5f6418a6c 100644
--- a/src/basic/securebits-util.c
+++ b/src/basic/securebits-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/securebits-util.h b/src/basic/securebits-util.h
index b4d970c366..aaa192f0a5 100644
--- a/src/basic/securebits-util.h
+++ b/src/basic/securebits-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/selinux-util.c b/src/basic/selinux-util.c
index 93bcdb2160..0c6e99b1d7 100644
--- a/src/basic/selinux-util.c
+++ b/src/basic/selinux-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/selinux-util.h b/src/basic/selinux-util.h
index 5bf72364b4..9780dca81e 100644
--- a/src/basic/selinux-util.h
+++ b/src/basic/selinux-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/set.c b/src/basic/set.c
index fd398b8212..99f2042699 100644
--- a/src/basic/set.c
+++ b/src/basic/set.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/set.h b/src/basic/set.h
index 12d0fda1ca..e798d5fb35 100644
--- a/src/basic/set.h
+++ b/src/basic/set.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/sigbus.c b/src/basic/sigbus.c
index 0ce4f75684..2416929e36 100644
--- a/src/basic/sigbus.c
+++ b/src/basic/sigbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/sigbus.h b/src/basic/sigbus.h
index 980243d9ce..90b0c9632e 100644
--- a/src/basic/sigbus.h
+++ b/src/basic/sigbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/signal-util.c b/src/basic/signal-util.c
index df6b742fde..3137f3d079 100644
--- a/src/basic/signal-util.c
+++ b/src/basic/signal-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/signal-util.h b/src/basic/signal-util.h
index dfd6eb564d..294f226ed0 100644
--- a/src/basic/signal-util.h
+++ b/src/basic/signal-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/smack-util.c b/src/basic/smack-util.c
index 3dcf150c59..e0f1c9f1c7 100644
--- a/src/basic/smack-util.c
+++ b/src/basic/smack-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/smack-util.h b/src/basic/smack-util.h
index f90ba0a027..e4d46d7736 100644
--- a/src/basic/smack-util.h
+++ b/src/basic/smack-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/socket-label.c b/src/basic/socket-label.c
index 6e7cdaac63..20be406371 100644
--- a/src/basic/socket-label.c
+++ b/src/basic/socket-label.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/socket-util.c b/src/basic/socket-util.c
index 29c779552d..b02af357ad 100644
--- a/src/basic/socket-util.c
+++ b/src/basic/socket-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/socket-util.h b/src/basic/socket-util.h
index 43edc05c63..272e74b0cc 100644
--- a/src/basic/socket-util.h
+++ b/src/basic/socket-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/sparse-endian.h b/src/basic/sparse-endian.h
index a3573b84a9..5e59de5437 100644
--- a/src/basic/sparse-endian.h
+++ b/src/basic/sparse-endian.h
@@ -1,4 +1,6 @@
-/* Copyright (c) 2012 Josh Triplett <josh@joshtriplett.org>
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (c) 2012 Josh Triplett <josh@joshtriplett.org>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to
diff --git a/src/basic/special.h b/src/basic/special.h
index ddd4e84019..c058b1d852 100644
--- a/src/basic/special.h
+++ b/src/basic/special.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/stat-util.c b/src/basic/stat-util.c
index d87370e672..ea554f7b73 100644
--- a/src/basic/stat-util.c
+++ b/src/basic/stat-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/stat-util.h b/src/basic/stat-util.h
index cd204ac6cb..615315f306 100644
--- a/src/basic/stat-util.h
+++ b/src/basic/stat-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/stdio-util.h b/src/basic/stdio-util.h
index bd1144b4c9..dbfafba269 100644
--- a/src/basic/stdio-util.h
+++ b/src/basic/stdio-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/strbuf.c b/src/basic/strbuf.c
index 00aaf9e621..8befffa66f 100644
--- a/src/basic/strbuf.c
+++ b/src/basic/strbuf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/strbuf.h b/src/basic/strbuf.h
index a1632da0e8..d5888a06dc 100644
--- a/src/basic/strbuf.h
+++ b/src/basic/strbuf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/string-table.c b/src/basic/string-table.c
index a1499ab126..d4b7c69bdc 100644
--- a/src/basic/string-table.c
+++ b/src/basic/string-table.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/string-table.h b/src/basic/string-table.h
index 369610efc8..4306b90f46 100644
--- a/src/basic/string-table.h
+++ b/src/basic/string-table.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 
 #pragma once
 
diff --git a/src/basic/string-util.c b/src/basic/string-util.c
index be2613ca9e..06cdcf1c6e 100644
--- a/src/basic/string-util.c
+++ b/src/basic/string-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/string-util.h b/src/basic/string-util.h
index d2040ebd12..684af0f3e4 100644
--- a/src/basic/string-util.h
+++ b/src/basic/string-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/strv.c b/src/basic/strv.c
index c63f11c6ad..54c701aee2 100644
--- a/src/basic/strv.c
+++ b/src/basic/strv.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/strv.h b/src/basic/strv.h
index 385ad17779..c793b2cf51 100644
--- a/src/basic/strv.h
+++ b/src/basic/strv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/strxcpyx.c b/src/basic/strxcpyx.c
index c6fbe79647..b440a9a725 100644
--- a/src/basic/strxcpyx.c
+++ b/src/basic/strxcpyx.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/strxcpyx.h b/src/basic/strxcpyx.h
index 80ff58726b..0554454fd2 100644
--- a/src/basic/strxcpyx.h
+++ b/src/basic/strxcpyx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/syslog-util.c b/src/basic/syslog-util.c
index db3405154e..4f4e2354b6 100644
--- a/src/basic/syslog-util.c
+++ b/src/basic/syslog-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/syslog-util.h b/src/basic/syslog-util.h
index 5cb606a1bf..8f44e3f8ef 100644
--- a/src/basic/syslog-util.h
+++ b/src/basic/syslog-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index fdf2b098f6..f6118ebc24 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/terminal-util.h b/src/basic/terminal-util.h
index c3045eb09d..e82719b11b 100644
--- a/src/basic/terminal-util.h
+++ b/src/basic/terminal-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index f7f5e614f2..6bf3c8db1d 100644
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/time-util.h b/src/basic/time-util.h
index 73f7e40066..f600bc3cbb 100644
--- a/src/basic/time-util.h
+++ b/src/basic/time-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/umask-util.h b/src/basic/umask-util.h
index 359d87d27c..638b37d7de 100644
--- a/src/basic/umask-util.h
+++ b/src/basic/umask-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/unaligned.h b/src/basic/unaligned.h
index 7c847a3ccb..201b3d227e 100644
--- a/src/basic/unaligned.h
+++ b/src/basic/unaligned.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/unit-def.c b/src/basic/unit-def.c
index 6b509c95d1..387533f597 100644
--- a/src/basic/unit-def.c
+++ b/src/basic/unit-def.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/unit-def.h b/src/basic/unit-def.h
index ecde00690e..c142e069a6 100644
--- a/src/basic/unit-def.h
+++ b/src/basic/unit-def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/unit-name.c b/src/basic/unit-name.c
index 27ce432197..8ef80ca6a8 100644
--- a/src/basic/unit-name.c
+++ b/src/basic/unit-name.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/unit-name.h b/src/basic/unit-name.h
index 771f65587c..b47327dcaf 100644
--- a/src/basic/unit-name.h
+++ b/src/basic/unit-name.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/user-util.c b/src/basic/user-util.c
index a691a0d3fc..24686591c2 100644
--- a/src/basic/user-util.c
+++ b/src/basic/user-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/user-util.h b/src/basic/user-util.h
index dfea561bde..f13367893e 100644
--- a/src/basic/user-util.h
+++ b/src/basic/user-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/utf8.c b/src/basic/utf8.c
index 7a52fac621..4da9a405cb 100644
--- a/src/basic/utf8.c
+++ b/src/basic/utf8.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/utf8.h b/src/basic/utf8.h
index f9b9c9468b..b0a7485aed 100644
--- a/src/basic/utf8.h
+++ b/src/basic/utf8.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/util.c b/src/basic/util.c
index 37fbfbf97f..0c278ab20e 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/util.h b/src/basic/util.h
index b31dfd1c92..a79907de3e 100644
--- a/src/basic/util.h
+++ b/src/basic/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/verbs.c b/src/basic/verbs.c
index d9cdb38d65..cc1bd7e323 100644
--- a/src/basic/verbs.c
+++ b/src/basic/verbs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/verbs.h b/src/basic/verbs.h
index 7b5e18510f..ed62f4d07b 100644
--- a/src/basic/verbs.h
+++ b/src/basic/verbs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/virt.c b/src/basic/virt.c
index bacaabc5c0..fdbb501819 100644
--- a/src/basic/virt.c
+++ b/src/basic/virt.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/virt.h b/src/basic/virt.h
index 7d15169112..d9badd8efe 100644
--- a/src/basic/virt.h
+++ b/src/basic/virt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/web-util.c b/src/basic/web-util.c
index 595688ed93..d721b02653 100644
--- a/src/basic/web-util.c
+++ b/src/basic/web-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/web-util.h b/src/basic/web-util.h
index e6bb6b53f5..ad8c850d1d 100644
--- a/src/basic/web-util.h
+++ b/src/basic/web-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/xattr-util.c b/src/basic/xattr-util.c
index e086376d7c..28214fcf49 100644
--- a/src/basic/xattr-util.c
+++ b/src/basic/xattr-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/xattr-util.h b/src/basic/xattr-util.h
index 6fa097bf7e..1a78027aaa 100644
--- a/src/basic/xattr-util.h
+++ b/src/basic/xattr-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/basic/xml.c b/src/basic/xml.c
index a4337f4865..639c3438a0 100644
--- a/src/basic/xml.c
+++ b/src/basic/xml.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/basic/xml.h b/src/basic/xml.h
index 41cb69f0dc..d00b527232 100644
--- a/src/basic/xml.h
+++ b/src/basic/xml.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/binfmt/binfmt.c b/src/binfmt/binfmt.c
index 17af233ef8..eb888e88ea 100644
--- a/src/binfmt/binfmt.c
+++ b/src/binfmt/binfmt.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/boot/bootctl.c b/src/boot/bootctl.c
index 85f3b42c48..56315fb760 100644
--- a/src/boot/bootctl.c
+++ b/src/boot/bootctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/boot/efi/boot.c b/src/boot/efi/boot.c
index 12176f1fe0..5a4e72a661 100644
--- a/src/boot/efi/boot.c
+++ b/src/boot/efi/boot.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/console.c b/src/boot/efi/console.c
index 2b797c9a5f..4487ed099f 100644
--- a/src/boot/efi/console.c
+++ b/src/boot/efi/console.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/console.h b/src/boot/efi/console.h
index 3fe0ce5ec4..5664a4e62f 100644
--- a/src/boot/efi/console.h
+++ b/src/boot/efi/console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/disk.c b/src/boot/efi/disk.c
index 3e3b5b224a..af0f05c75d 100644
--- a/src/boot/efi/disk.c
+++ b/src/boot/efi/disk.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/disk.h b/src/boot/efi/disk.h
index af91a9c674..c5894f8e4e 100644
--- a/src/boot/efi/disk.h
+++ b/src/boot/efi/disk.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/graphics.c b/src/boot/efi/graphics.c
index 4854baf874..29577c837a 100644
--- a/src/boot/efi/graphics.c
+++ b/src/boot/efi/graphics.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/graphics.h b/src/boot/efi/graphics.h
index cf48e647e7..10e0c269ba 100644
--- a/src/boot/efi/graphics.h
+++ b/src/boot/efi/graphics.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/linux.c b/src/boot/efi/linux.c
index 0dc99a6c53..b77f39676f 100644
--- a/src/boot/efi/linux.c
+++ b/src/boot/efi/linux.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/linux.h b/src/boot/efi/linux.h
index d9e6ed7955..88b763ef60 100644
--- a/src/boot/efi/linux.h
+++ b/src/boot/efi/linux.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/measure.c b/src/boot/efi/measure.c
index 324d1c8b9e..f43039b1b3 100644
--- a/src/boot/efi/measure.c
+++ b/src/boot/efi/measure.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/measure.h b/src/boot/efi/measure.h
index 43aa8a0058..63e0a738ce 100644
--- a/src/boot/efi/measure.h
+++ b/src/boot/efi/measure.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/meson.build b/src/boot/efi/meson.build
index eb0be02977..992a3ba4c2 100644
--- a/src/boot/efi/meson.build
+++ b/src/boot/efi/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 efi_headers = files('''
         console.h
         disk.h
diff --git a/src/boot/efi/pe.c b/src/boot/efi/pe.c
index 054e8edbc6..3755a36a68 100644
--- a/src/boot/efi/pe.c
+++ b/src/boot/efi/pe.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/pe.h b/src/boot/efi/pe.h
index fa8feea758..4a411f5d76 100644
--- a/src/boot/efi/pe.h
+++ b/src/boot/efi/pe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/shim.c b/src/boot/efi/shim.c
index 0f73be9549..6b83af1f82 100644
--- a/src/boot/efi/shim.c
+++ b/src/boot/efi/shim.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/shim.h b/src/boot/efi/shim.h
index 2dcf48dcd5..d9ab135ae0 100644
--- a/src/boot/efi/shim.h
+++ b/src/boot/efi/shim.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/splash.c b/src/boot/efi/splash.c
index c0ef7f64fe..32186d4e38 100644
--- a/src/boot/efi/splash.c
+++ b/src/boot/efi/splash.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/splash.h b/src/boot/efi/splash.h
index 09b543fb47..c7e9c7a78d 100644
--- a/src/boot/efi/splash.h
+++ b/src/boot/efi/splash.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/stub.c b/src/boot/efi/stub.c
index e85ebf2c3f..5b4bd4f0a8 100644
--- a/src/boot/efi/stub.c
+++ b/src/boot/efi/stub.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /* This program 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
diff --git a/src/boot/efi/util.c b/src/boot/efi/util.c
index 98c5be74ce..b165f31005 100644
--- a/src/boot/efi/util.c
+++ b/src/boot/efi/util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/boot/efi/util.h b/src/boot/efi/util.h
index e673cdf9a0..35150aea76 100644
--- a/src/boot/efi/util.h
+++ b/src/boot/efi/util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU Lesser General Public License as published by
diff --git a/src/busctl/busctl-introspect.c b/src/busctl/busctl-introspect.c
index a05794941f..54d6e07d2c 100644
--- a/src/busctl/busctl-introspect.c
+++ b/src/busctl/busctl-introspect.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/busctl/busctl-introspect.h b/src/busctl/busctl-introspect.h
index d922e352db..a27a1c8f9d 100644
--- a/src/busctl/busctl-introspect.h
+++ b/src/busctl/busctl-introspect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/busctl/busctl.c b/src/busctl/busctl.c
index dd06b200fb..3b2b5f3fc2 100644
--- a/src/busctl/busctl.c
+++ b/src/busctl/busctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/cgls/cgls.c b/src/cgls/cgls.c
index 1b746a0e13..fb44b9f669 100644
--- a/src/cgls/cgls.c
+++ b/src/cgls/cgls.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/cgroups-agent/cgroups-agent.c b/src/cgroups-agent/cgroups-agent.c
index d7c722ac3d..05d12ebb41 100644
--- a/src/cgroups-agent/cgroups-agent.c
+++ b/src/cgroups-agent/cgroups-agent.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/cgtop/cgtop.c b/src/cgtop/cgtop.c
index 7ebb02fa8c..8add7e73e4 100644
--- a/src/cgtop/cgtop.c
+++ b/src/cgtop/cgtop.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/audit-fd.c b/src/core/audit-fd.c
index 6207f8185e..60e79035af 100644
--- a/src/core/audit-fd.c
+++ b/src/core/audit-fd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/audit-fd.h b/src/core/audit-fd.h
index 0eccb59210..43f4f193d8 100644
--- a/src/core/audit-fd.h
+++ b/src/core/audit-fd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/automount.c b/src/core/automount.c
index befa3131ee..e01b3ed9d3 100644
--- a/src/core/automount.c
+++ b/src/core/automount.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/automount.h b/src/core/automount.h
index 76a201178e..b8be4d316e 100644
--- a/src/core/automount.h
+++ b/src/core/automount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/bpf-firewall.c b/src/core/bpf-firewall.c
index 09c5bd3ddd..148f1a5dcb 100644
--- a/src/core/bpf-firewall.c
+++ b/src/core/bpf-firewall.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/bpf-firewall.h b/src/core/bpf-firewall.h
index 870e314e0e..37a1f2e003 100644
--- a/src/core/bpf-firewall.h
+++ b/src/core/bpf-firewall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index 3c0d22a691..bd0910ed69 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/cgroup.h b/src/core/cgroup.h
index a75be38044..00df3bb368 100644
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/chown-recursive.c b/src/core/chown-recursive.c
index 2a3a0704f5..f021f03a06 100644
--- a/src/core/chown-recursive.c
+++ b/src/core/chown-recursive.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/chown-recursive.h b/src/core/chown-recursive.h
index 653169885e..7540a8db59 100644
--- a/src/core/chown-recursive.h
+++ b/src/core/chown-recursive.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-automount.c b/src/core/dbus-automount.c
index 26212b3a95..3c165c41a5 100644
--- a/src/core/dbus-automount.c
+++ b/src/core/dbus-automount.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-automount.h b/src/core/dbus-automount.h
index f41adda2a6..dc56de954a 100644
--- a/src/core/dbus-automount.h
+++ b/src/core/dbus-automount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-cgroup.c b/src/core/dbus-cgroup.c
index e8e8b89bb2..f09d9fecab 100644
--- a/src/core/dbus-cgroup.c
+++ b/src/core/dbus-cgroup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-cgroup.h b/src/core/dbus-cgroup.h
index b2212fe44e..0e3b903f6f 100644
--- a/src/core/dbus-cgroup.h
+++ b/src/core/dbus-cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-device.c b/src/core/dbus-device.c
index e1a12224d3..fbb60d821e 100644
--- a/src/core/dbus-device.c
+++ b/src/core/dbus-device.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-device.h b/src/core/dbus-device.h
index eb1d8c3278..c8098708f4 100644
--- a/src/core/dbus-device.h
+++ b/src/core/dbus-device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-execute.c b/src/core/dbus-execute.c
index eeb4ac9a01..67a6d9ef12 100644
--- a/src/core/dbus-execute.c
+++ b/src/core/dbus-execute.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-execute.h b/src/core/dbus-execute.h
index d0aa8e1dd5..631edcc8c8 100644
--- a/src/core/dbus-execute.h
+++ b/src/core/dbus-execute.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-job.c b/src/core/dbus-job.c
index effc45db45..0802fc9773 100644
--- a/src/core/dbus-job.c
+++ b/src/core/dbus-job.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-job.h b/src/core/dbus-job.h
index a4366a0720..65d87814a6 100644
--- a/src/core/dbus-job.h
+++ b/src/core/dbus-job.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-kill.c b/src/core/dbus-kill.c
index 8c65be65fa..4ac9f363cc 100644
--- a/src/core/dbus-kill.c
+++ b/src/core/dbus-kill.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-kill.h b/src/core/dbus-kill.h
index b9b18811e3..44fb9f9a93 100644
--- a/src/core/dbus-kill.h
+++ b/src/core/dbus-kill.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-manager.c b/src/core/dbus-manager.c
index c9da05335f..3c043ba91a 100644
--- a/src/core/dbus-manager.c
+++ b/src/core/dbus-manager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-manager.h b/src/core/dbus-manager.h
index 9f3222da28..1a6090f0f5 100644
--- a/src/core/dbus-manager.h
+++ b/src/core/dbus-manager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-mount.c b/src/core/dbus-mount.c
index 69a04fe2ae..794b292ad3 100644
--- a/src/core/dbus-mount.c
+++ b/src/core/dbus-mount.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-mount.h b/src/core/dbus-mount.h
index ec16166d36..f0a763788f 100644
--- a/src/core/dbus-mount.h
+++ b/src/core/dbus-mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-path.c b/src/core/dbus-path.c
index 1e153e503f..0f54b04f76 100644
--- a/src/core/dbus-path.c
+++ b/src/core/dbus-path.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-path.h b/src/core/dbus-path.h
index d3c19e0c2b..5e7e859b56 100644
--- a/src/core/dbus-path.h
+++ b/src/core/dbus-path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-scope.c b/src/core/dbus-scope.c
index 1abaf9f658..2d5baab4ce 100644
--- a/src/core/dbus-scope.c
+++ b/src/core/dbus-scope.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-scope.h b/src/core/dbus-scope.h
index 270306f508..8e4358204d 100644
--- a/src/core/dbus-scope.h
+++ b/src/core/dbus-scope.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-service.c b/src/core/dbus-service.c
index 05bdc0a748..6b83982cf8 100644
--- a/src/core/dbus-service.c
+++ b/src/core/dbus-service.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-service.h b/src/core/dbus-service.h
index 769a53769e..a0f89fa23c 100644
--- a/src/core/dbus-service.h
+++ b/src/core/dbus-service.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-slice.c b/src/core/dbus-slice.c
index e37f50b283..d269cb2b1e 100644
--- a/src/core/dbus-slice.c
+++ b/src/core/dbus-slice.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-slice.h b/src/core/dbus-slice.h
index 52ceebb135..5855332126 100644
--- a/src/core/dbus-slice.h
+++ b/src/core/dbus-slice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-socket.c b/src/core/dbus-socket.c
index 21adb64e15..3c7d99c356 100644
--- a/src/core/dbus-socket.c
+++ b/src/core/dbus-socket.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-socket.h b/src/core/dbus-socket.h
index 7a792c7a89..ee9663f904 100644
--- a/src/core/dbus-socket.h
+++ b/src/core/dbus-socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-swap.c b/src/core/dbus-swap.c
index 85a2c26b98..ae67f3e6d5 100644
--- a/src/core/dbus-swap.c
+++ b/src/core/dbus-swap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-swap.h b/src/core/dbus-swap.h
index 5238471f98..7df5cc7e54 100644
--- a/src/core/dbus-swap.h
+++ b/src/core/dbus-swap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-target.c b/src/core/dbus-target.c
index 6858b1ce72..7060b65c6e 100644
--- a/src/core/dbus-target.c
+++ b/src/core/dbus-target.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-target.h b/src/core/dbus-target.h
index 9be5ce06b7..7852917962 100644
--- a/src/core/dbus-target.h
+++ b/src/core/dbus-target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-timer.c b/src/core/dbus-timer.c
index c98282a5d4..282d7f6fab 100644
--- a/src/core/dbus-timer.c
+++ b/src/core/dbus-timer.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-timer.h b/src/core/dbus-timer.h
index 39053dc4a2..e71f6cfefb 100644
--- a/src/core/dbus-timer.h
+++ b/src/core/dbus-timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus-unit.c b/src/core/dbus-unit.c
index 561cf453f6..7e5c889830 100644
--- a/src/core/dbus-unit.c
+++ b/src/core/dbus-unit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus-unit.h b/src/core/dbus-unit.h
index b280de7a1d..b723453f37 100644
--- a/src/core/dbus-unit.h
+++ b/src/core/dbus-unit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dbus.c b/src/core/dbus.c
index 210b344cd3..b7d8af9396 100644
--- a/src/core/dbus.c
+++ b/src/core/dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dbus.h b/src/core/dbus.h
index a092ed9d76..fe50fdd5f7 100644
--- a/src/core/dbus.h
+++ b/src/core/dbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/device.c b/src/core/device.c
index a0150751cd..dec6e74f95 100644
--- a/src/core/device.c
+++ b/src/core/device.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/device.h b/src/core/device.h
index dd372fb695..a551e7748a 100644
--- a/src/core/device.h
+++ b/src/core/device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/dynamic-user.c b/src/core/dynamic-user.c
index ce84f8d41a..c4198ac40e 100644
--- a/src/core/dynamic-user.c
+++ b/src/core/dynamic-user.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/dynamic-user.h b/src/core/dynamic-user.h
index a0cb378115..b073c65837 100644
--- a/src/core/dynamic-user.h
+++ b/src/core/dynamic-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/emergency-action.c b/src/core/emergency-action.c
index f9110c55ce..308608e426 100644
--- a/src/core/emergency-action.c
+++ b/src/core/emergency-action.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/emergency-action.h b/src/core/emergency-action.h
index 8804b59752..4079e8499a 100644
--- a/src/core/emergency-action.h
+++ b/src/core/emergency-action.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/execute.c b/src/core/execute.c
index 45df0318e0..80b48191bd 100644
--- a/src/core/execute.c
+++ b/src/core/execute.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/execute.h b/src/core/execute.h
index ab9d0dbe2d..aad33120e1 100644
--- a/src/core/execute.h
+++ b/src/core/execute.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/hostname-setup.c b/src/core/hostname-setup.c
index 845e31e1c5..f905f52991 100644
--- a/src/core/hostname-setup.c
+++ b/src/core/hostname-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/hostname-setup.h b/src/core/hostname-setup.h
index 73e8c75c71..8bf8769859 100644
--- a/src/core/hostname-setup.h
+++ b/src/core/hostname-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/ima-setup.c b/src/core/ima-setup.c
index 6c7b209977..4335b7aaa2 100644
--- a/src/core/ima-setup.c
+++ b/src/core/ima-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/ima-setup.h b/src/core/ima-setup.h
index 472b58cb00..1eae74bceb 100644
--- a/src/core/ima-setup.h
+++ b/src/core/ima-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/ip-address-access.c b/src/core/ip-address-access.c
index a17620567d..8d72fc03bf 100644
--- a/src/core/ip-address-access.c
+++ b/src/core/ip-address-access.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/ip-address-access.h b/src/core/ip-address-access.h
index 9aeab1f4f8..536142e904 100644
--- a/src/core/ip-address-access.h
+++ b/src/core/ip-address-access.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/job.c b/src/core/job.c
index 606b6422ab..b01c9c1373 100644
--- a/src/core/job.c
+++ b/src/core/job.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/job.h b/src/core/job.h
index b17001889e..a2f3b7b5d2 100644
--- a/src/core/job.h
+++ b/src/core/job.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/kill.c b/src/core/kill.c
index 6854587d54..f438c4d8fa 100644
--- a/src/core/kill.c
+++ b/src/core/kill.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/kill.h b/src/core/kill.h
index b3d2056cb0..f0d6ec41e9 100644
--- a/src/core/kill.h
+++ b/src/core/kill.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/killall.c b/src/core/killall.c
index fe5320e813..e77763e161 100644
--- a/src/core/killall.c
+++ b/src/core/killall.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/killall.h b/src/core/killall.h
index acc2439f00..01bd6e52b3 100644
--- a/src/core/killall.h
+++ b/src/core/killall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/kmod-setup.c b/src/core/kmod-setup.c
index 10d3ced93d..0550e222b5 100644
--- a/src/core/kmod-setup.c
+++ b/src/core/kmod-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/kmod-setup.h b/src/core/kmod-setup.h
index 685f4df301..b5ea6b55a9 100644
--- a/src/core/kmod-setup.h
+++ b/src/core/kmod-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/load-dropin.c b/src/core/load-dropin.c
index 062060a3b3..57ed686d1f 100644
--- a/src/core/load-dropin.c
+++ b/src/core/load-dropin.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/load-dropin.h b/src/core/load-dropin.h
index 5828a223ce..4c8ab487b3 100644
--- a/src/core/load-dropin.h
+++ b/src/core/load-dropin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/load-fragment.c b/src/core/load-fragment.c
index 52a10dd24b..c8ab68edc7 100644
--- a/src/core/load-fragment.c
+++ b/src/core/load-fragment.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/load-fragment.h b/src/core/load-fragment.h
index fbf2de23eb..7ee1cfb6b4 100644
--- a/src/core/load-fragment.h
+++ b/src/core/load-fragment.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/locale-setup.c b/src/core/locale-setup.c
index fdd847ee8b..6240a83197 100644
--- a/src/core/locale-setup.c
+++ b/src/core/locale-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/locale-setup.h b/src/core/locale-setup.h
index 3b97497afe..c1bee3812b 100644
--- a/src/core/locale-setup.h
+++ b/src/core/locale-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/loopback-setup.c b/src/core/loopback-setup.c
index c167305ca9..9a75525894 100644
--- a/src/core/loopback-setup.c
+++ b/src/core/loopback-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/loopback-setup.h b/src/core/loopback-setup.h
index e7547b8a26..9fac0189e4 100644
--- a/src/core/loopback-setup.h
+++ b/src/core/loopback-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/machine-id-setup.c b/src/core/machine-id-setup.c
index df3cc74b98..767e97206c 100644
--- a/src/core/machine-id-setup.c
+++ b/src/core/machine-id-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/machine-id-setup.h b/src/core/machine-id-setup.h
index 29f4620646..cbd83ba270 100644
--- a/src/core/machine-id-setup.h
+++ b/src/core/machine-id-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/macros.systemd.in b/src/core/macros.systemd.in
index 03fb2a8389..940f1e895a 100644
--- a/src/core/macros.systemd.in
+++ b/src/core/macros.systemd.in
@@ -1,4 +1,5 @@
 #  -*- Mode: rpm-spec; indent-tabs-mode: nil -*- */
+#  SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
diff --git a/src/core/main.c b/src/core/main.c
index 4b395601a0..eb51a464b3 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/manager.c b/src/core/manager.c
index b9d179cc3a..67fe3d2120 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/manager.h b/src/core/manager.h
index ff69f6c50b..8f1357d37e 100644
--- a/src/core/manager.h
+++ b/src/core/manager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/meson.build b/src/core/meson.build
index caa686ae01..535ccde468 100644
--- a/src/core/meson.build
+++ b/src/core/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 libcore_la_sources = '''
         audit-fd.c
         audit-fd.h
diff --git a/src/core/mount-setup.c b/src/core/mount-setup.c
index 3d7831d032..0054cf8ba3 100644
--- a/src/core/mount-setup.c
+++ b/src/core/mount-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/mount-setup.h b/src/core/mount-setup.h
index 647bd770ae..2c96e64e52 100644
--- a/src/core/mount-setup.h
+++ b/src/core/mount-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/mount.c b/src/core/mount.c
index 6a89a2d539..79a6e1626c 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/mount.h b/src/core/mount.h
index f81e4217df..8309441a8d 100644
--- a/src/core/mount.h
+++ b/src/core/mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/namespace.c b/src/core/namespace.c
index f1ab6f9736..738a1f5134 100644
--- a/src/core/namespace.c
+++ b/src/core/namespace.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/namespace.h b/src/core/namespace.h
index 665ac96d0c..f0f198362c 100644
--- a/src/core/namespace.h
+++ b/src/core/namespace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/org.freedesktop.systemd1.conf b/src/core/org.freedesktop.systemd1.conf
index e824a2233c..97f6094b66 100644
--- a/src/core/org.freedesktop.systemd1.conf
+++ b/src/core/org.freedesktop.systemd1.conf
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/core/org.freedesktop.systemd1.policy.in.in b/src/core/org.freedesktop.systemd1.policy.in.in
index 9f9263762e..2c6ed749fd 100644
--- a/src/core/org.freedesktop.systemd1.policy.in.in
+++ b/src/core/org.freedesktop.systemd1.policy.in.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/core/org.freedesktop.systemd1.service b/src/core/org.freedesktop.systemd1.service
index d4df3e93a2..8bd7302d6c 100644
--- a/src/core/org.freedesktop.systemd1.service
+++ b/src/core/org.freedesktop.systemd1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/core/path.c b/src/core/path.c
index 6b0768505a..6b22451a08 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/path.h b/src/core/path.h
index 4230c8fb99..41e31986f2 100644
--- a/src/core/path.h
+++ b/src/core/path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/scope.c b/src/core/scope.c
index 98be2191df..444c00be92 100644
--- a/src/core/scope.c
+++ b/src/core/scope.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/scope.h b/src/core/scope.h
index eaf8e8b447..7e8c47dd42 100644
--- a/src/core/scope.h
+++ b/src/core/scope.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/selinux-access.c b/src/core/selinux-access.c
index 2db4189401..475c3181c9 100644
--- a/src/core/selinux-access.c
+++ b/src/core/selinux-access.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/selinux-access.h b/src/core/selinux-access.h
index 1f6a518a61..c5f5fb975e 100644
--- a/src/core/selinux-access.h
+++ b/src/core/selinux-access.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/selinux-setup.c b/src/core/selinux-setup.c
index 60361a5638..7135542106 100644
--- a/src/core/selinux-setup.c
+++ b/src/core/selinux-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/selinux-setup.h b/src/core/selinux-setup.h
index 7b613249b0..410991c49f 100644
--- a/src/core/selinux-setup.h
+++ b/src/core/selinux-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/service.c b/src/core/service.c
index 95b52905de..a68e5c9f3d 100644
--- a/src/core/service.c
+++ b/src/core/service.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/service.h b/src/core/service.h
index 236d37fcbc..a529f48a63 100644
--- a/src/core/service.h
+++ b/src/core/service.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/show-status.c b/src/core/show-status.c
index 8c94573844..40658a2e16 100644
--- a/src/core/show-status.c
+++ b/src/core/show-status.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/show-status.h b/src/core/show-status.h
index 9a29e72645..a13d52484c 100644
--- a/src/core/show-status.h
+++ b/src/core/show-status.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/shutdown.c b/src/core/shutdown.c
index 6d1cc3120a..04494f4eee 100644
--- a/src/core/shutdown.c
+++ b/src/core/shutdown.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/slice.c b/src/core/slice.c
index e4faa1cdbd..5ab1e6f898 100644
--- a/src/core/slice.c
+++ b/src/core/slice.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/slice.h b/src/core/slice.h
index c9f3f61067..418327e933 100644
--- a/src/core/slice.h
+++ b/src/core/slice.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/smack-setup.c b/src/core/smack-setup.c
index 9cd539f3d3..f05db215e0 100644
--- a/src/core/smack-setup.c
+++ b/src/core/smack-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/smack-setup.h b/src/core/smack-setup.h
index 78164c85e6..8c2de5fdc5 100644
--- a/src/core/smack-setup.h
+++ b/src/core/smack-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/socket.c b/src/core/socket.c
index 40b2502a40..6c0d799bd9 100644
--- a/src/core/socket.c
+++ b/src/core/socket.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/socket.h b/src/core/socket.h
index 8c263963c4..81cfc97578 100644
--- a/src/core/socket.h
+++ b/src/core/socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/swap.c b/src/core/swap.c
index fca8c8dd0a..cfe9d91ced 100644
--- a/src/core/swap.c
+++ b/src/core/swap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/swap.h b/src/core/swap.h
index 45da63c5e2..d1ee73de8e 100644
--- a/src/core/swap.h
+++ b/src/core/swap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/systemd.pc.in b/src/core/systemd.pc.in
index ac52b30dd3..22e8cbda8b 100644
--- a/src/core/systemd.pc.in
+++ b/src/core/systemd.pc.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/core/target.c b/src/core/target.c
index 7083813459..756cbbfb6c 100644
--- a/src/core/target.c
+++ b/src/core/target.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/target.h b/src/core/target.h
index 339aea154e..8d44a11545 100644
--- a/src/core/target.h
+++ b/src/core/target.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/timer.c b/src/core/timer.c
index 5f50576999..27f4f74b49 100644
--- a/src/core/timer.c
+++ b/src/core/timer.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/timer.h b/src/core/timer.h
index 546c60d750..096d48bd34 100644
--- a/src/core/timer.h
+++ b/src/core/timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/transaction.c b/src/core/transaction.c
index 52014c634f..52ae664fae 100644
--- a/src/core/transaction.c
+++ b/src/core/transaction.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/transaction.h b/src/core/transaction.h
index ddfdbf9987..0d57b27f2e 100644
--- a/src/core/transaction.h
+++ b/src/core/transaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/triggers.systemd.in b/src/core/triggers.systemd.in
index f8c8cbc5f9..985c6d8b26 100644
--- a/src/core/triggers.systemd.in
+++ b/src/core/triggers.systemd.in
@@ -1,4 +1,5 @@
 #  -*- Mode: rpm-spec; indent-tabs-mode: nil -*- */
+#  SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
diff --git a/src/core/umount.c b/src/core/umount.c
index deaf0e3905..cd195e12af 100644
--- a/src/core/umount.c
+++ b/src/core/umount.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/umount.h b/src/core/umount.h
index 4e2215a47d..7c029c384c 100644
--- a/src/core/umount.h
+++ b/src/core/umount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/unit-printf.c b/src/core/unit-printf.c
index 8088d016a3..c8896c41e2 100644
--- a/src/core/unit-printf.c
+++ b/src/core/unit-printf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/unit-printf.h b/src/core/unit-printf.h
index 4fc8531228..f1b620e162 100644
--- a/src/core/unit-printf.h
+++ b/src/core/unit-printf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/core/unit.c b/src/core/unit.c
index 25cdc04506..921971c1c0 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/core/unit.h b/src/core/unit.h
index 03dd88dcca..2b11a285d4 100644
--- a/src/core/unit.h
+++ b/src/core/unit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/coredump/coredump-vacuum.c b/src/coredump/coredump-vacuum.c
index f02b6dbd87..5a9b7f38e7 100644
--- a/src/coredump/coredump-vacuum.c
+++ b/src/coredump/coredump-vacuum.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/coredump/coredump-vacuum.h b/src/coredump/coredump-vacuum.h
index 4b7b9f2d98..c61d08f79c 100644
--- a/src/coredump/coredump-vacuum.h
+++ b/src/coredump/coredump-vacuum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/coredump/coredump.c b/src/coredump/coredump.c
index ee258a1219..5673aa0f78 100644
--- a/src/coredump/coredump.c
+++ b/src/coredump/coredump.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/coredump/coredumpctl.c b/src/coredump/coredumpctl.c
index 0380df10d1..b92f5d330d 100644
--- a/src/coredump/coredumpctl.c
+++ b/src/coredump/coredumpctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/coredump/meson.build b/src/coredump/meson.build
index 25a0409046..4e31e7c7c2 100644
--- a/src/coredump/meson.build
+++ b/src/coredump/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_coredump_sources = files('''
         coredump.c
         coredump-vacuum.c
diff --git a/src/coredump/stacktrace.c b/src/coredump/stacktrace.c
index 1726613623..d37ffae020 100644
--- a/src/coredump/stacktrace.c
+++ b/src/coredump/stacktrace.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/coredump/stacktrace.h b/src/coredump/stacktrace.h
index 15e9c04465..d435878b44 100644
--- a/src/coredump/stacktrace.h
+++ b/src/coredump/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/coredump/test-coredump-vacuum.c b/src/coredump/test-coredump-vacuum.c
index 70a57f183f..0836825b07 100644
--- a/src/coredump/test-coredump-vacuum.c
+++ b/src/coredump/test-coredump-vacuum.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/cryptsetup/cryptsetup-generator.c b/src/cryptsetup/cryptsetup-generator.c
index 040a1aa408..7918c89564 100644
--- a/src/cryptsetup/cryptsetup-generator.c
+++ b/src/cryptsetup/cryptsetup-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/cryptsetup/cryptsetup.c b/src/cryptsetup/cryptsetup.c
index 6d37e349f3..b19d03e9f0 100644
--- a/src/cryptsetup/cryptsetup.c
+++ b/src/cryptsetup/cryptsetup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/debug-generator/debug-generator.c b/src/debug-generator/debug-generator.c
index 1d8bc71e57..604faa0d18 100644
--- a/src/debug-generator/debug-generator.c
+++ b/src/debug-generator/debug-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/delta/delta.c b/src/delta/delta.c
index 605bea57bb..d286881698 100644
--- a/src/delta/delta.c
+++ b/src/delta/delta.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/detect-virt/detect-virt.c b/src/detect-virt/detect-virt.c
index 4b8956f0ad..00235742de 100644
--- a/src/detect-virt/detect-virt.c
+++ b/src/detect-virt/detect-virt.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/dissect/dissect.c b/src/dissect/dissect.c
index e5264d09df..42957766ea 100644
--- a/src/dissect/dissect.c
+++ b/src/dissect/dissect.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/environment-d-generator/environment-d-generator.c b/src/environment-d-generator/environment-d-generator.c
index 55de68550d..bb4d76da90 100644
--- a/src/environment-d-generator/environment-d-generator.c
+++ b/src/environment-d-generator/environment-d-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/escape/escape.c b/src/escape/escape.c
index 5518c2a6fa..9c35b4663e 100644
--- a/src/escape/escape.c
+++ b/src/escape/escape.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/firstboot/firstboot.c b/src/firstboot/firstboot.c
index 81f297c5ec..1435880fab 100644
--- a/src/firstboot/firstboot.c
+++ b/src/firstboot/firstboot.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
index cf5a9c59ff..6290abdc1b 100644
--- a/src/fsck/fsck.c
+++ b/src/fsck/fsck.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/fstab-generator/fstab-generator.c b/src/fstab-generator/fstab-generator.c
index ec70a349fc..243c1160b3 100644
--- a/src/fstab-generator/fstab-generator.c
+++ b/src/fstab-generator/fstab-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/getty-generator/getty-generator.c b/src/getty-generator/getty-generator.c
index a143b5413b..3f62a81abc 100644
--- a/src/getty-generator/getty-generator.c
+++ b/src/getty-generator/getty-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/gpt-auto-generator/gpt-auto-generator.c b/src/gpt-auto-generator/gpt-auto-generator.c
index 2e1ce334bf..7d014db69d 100644
--- a/src/gpt-auto-generator/gpt-auto-generator.c
+++ b/src/gpt-auto-generator/gpt-auto-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/hibernate-resume/hibernate-resume-generator.c b/src/hibernate-resume/hibernate-resume-generator.c
index a97fe668d5..01222db516 100644
--- a/src/hibernate-resume/hibernate-resume-generator.c
+++ b/src/hibernate-resume/hibernate-resume-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/hibernate-resume/hibernate-resume.c b/src/hibernate-resume/hibernate-resume.c
index 21df3c4461..2a427210cd 100644
--- a/src/hibernate-resume/hibernate-resume.c
+++ b/src/hibernate-resume/hibernate-resume.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/hostname/hostnamectl.c b/src/hostname/hostnamectl.c
index 1c165a2e82..e06b111b43 100644
--- a/src/hostname/hostnamectl.c
+++ b/src/hostname/hostnamectl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/hostname/hostnamed.c b/src/hostname/hostnamed.c
index fe0aa00efb..a9d5d49bdd 100644
--- a/src/hostname/hostnamed.c
+++ b/src/hostname/hostnamed.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/hostname/meson.build b/src/hostname/meson.build
index f03d830410..75cc94874b 100644
--- a/src/hostname/meson.build
+++ b/src/hostname/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 if conf.get('ENABLE_HOSTNAMED') == 1
         install_data('org.freedesktop.hostname1.conf',
                      install_dir : dbuspolicydir)
diff --git a/src/hostname/org.freedesktop.hostname1.conf b/src/hostname/org.freedesktop.hostname1.conf
index 46b4aadc83..e2658c6c95 100644
--- a/src/hostname/org.freedesktop.hostname1.conf
+++ b/src/hostname/org.freedesktop.hostname1.conf
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/hostname/org.freedesktop.hostname1.policy.in b/src/hostname/org.freedesktop.hostname1.policy.in
index cf61c15619..b10ca31ac5 100644
--- a/src/hostname/org.freedesktop.hostname1.policy.in
+++ b/src/hostname/org.freedesktop.hostname1.policy.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/hostname/org.freedesktop.hostname1.service b/src/hostname/org.freedesktop.hostname1.service
index 6041ed60ca..421a8c607b 100644
--- a/src/hostname/org.freedesktop.hostname1.service
+++ b/src/hostname/org.freedesktop.hostname1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/hwdb/hwdb.c b/src/hwdb/hwdb.c
index c964a28bce..4540260f9b 100644
--- a/src/hwdb/hwdb.c
+++ b/src/hwdb/hwdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/curl-util.c b/src/import/curl-util.c
index 0e8f3fb918..7069c95a9f 100644
--- a/src/import/curl-util.c
+++ b/src/import/curl-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/curl-util.h b/src/import/curl-util.h
index a758cc5640..c7c24c9f7e 100644
--- a/src/import/curl-util.h
+++ b/src/import/curl-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/export-raw.c b/src/import/export-raw.c
index a3dbce1954..8485027b2b 100644
--- a/src/import/export-raw.c
+++ b/src/import/export-raw.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/export-raw.h b/src/import/export-raw.h
index 8e723d4908..f932a37955 100644
--- a/src/import/export-raw.h
+++ b/src/import/export-raw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/export-tar.c b/src/import/export-tar.c
index 3bb6027431..dafe3e1c88 100644
--- a/src/import/export-tar.c
+++ b/src/import/export-tar.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/export-tar.h b/src/import/export-tar.h
index 1e3c8bb80c..5739ade09a 100644
--- a/src/import/export-tar.h
+++ b/src/import/export-tar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/export.c b/src/import/export.c
index cc98c33ef6..753d1399f5 100644
--- a/src/import/export.c
+++ b/src/import/export.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/import-common.c b/src/import/import-common.c
index ae71682988..1bd5a8342d 100644
--- a/src/import/import-common.c
+++ b/src/import/import-common.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/import-common.h b/src/import/import-common.h
index 07d3250e71..55ec536406 100644
--- a/src/import/import-common.h
+++ b/src/import/import-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/import-compress.c b/src/import/import-compress.c
index 01b78fc9a6..cb5b9821c3 100644
--- a/src/import/import-compress.c
+++ b/src/import/import-compress.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/import-compress.h b/src/import/import-compress.h
index 6b59d0724b..1eac4d403a 100644
--- a/src/import/import-compress.h
+++ b/src/import/import-compress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/import-raw.c b/src/import/import-raw.c
index 55cf8e8edd..6f4313420a 100644
--- a/src/import/import-raw.c
+++ b/src/import/import-raw.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/import-raw.h b/src/import/import-raw.h
index 4f543e0883..1e0227ab55 100644
--- a/src/import/import-raw.h
+++ b/src/import/import-raw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/import-tar.c b/src/import/import-tar.c
index ba140bccbd..c5014499ac 100644
--- a/src/import/import-tar.c
+++ b/src/import/import-tar.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/import-tar.h b/src/import/import-tar.h
index 24abe06c8f..44743c9cb3 100644
--- a/src/import/import-tar.h
+++ b/src/import/import-tar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/import.c b/src/import/import.c
index 2b6ca24af8..cc454ee15b 100644
--- a/src/import/import.c
+++ b/src/import/import.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/importd.c b/src/import/importd.c
index e23d6d0c80..9c7694c0ad 100644
--- a/src/import/importd.c
+++ b/src/import/importd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/meson.build b/src/import/meson.build
index fa8fa6a5c0..2dcc0bcc00 100644
--- a/src/import/meson.build
+++ b/src/import/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_importd_sources = files('''
         importd.c
 '''.split())
diff --git a/src/import/org.freedesktop.import1.conf b/src/import/org.freedesktop.import1.conf
index ed2539a03b..9889cd6b10 100644
--- a/src/import/org.freedesktop.import1.conf
+++ b/src/import/org.freedesktop.import1.conf
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/import/org.freedesktop.import1.policy.in b/src/import/org.freedesktop.import1.policy.in
index 39167b06bc..d96ca2d060 100644
--- a/src/import/org.freedesktop.import1.policy.in
+++ b/src/import/org.freedesktop.import1.policy.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/import/org.freedesktop.import1.service b/src/import/org.freedesktop.import1.service
index 8fc4c47881..34d26d0732 100644
--- a/src/import/org.freedesktop.import1.service
+++ b/src/import/org.freedesktop.import1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/import/pull-common.c b/src/import/pull-common.c
index 78840dd882..e5d47b8a13 100644
--- a/src/import/pull-common.c
+++ b/src/import/pull-common.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/pull-common.h b/src/import/pull-common.h
index f1f1a17fa9..14c81fb1f1 100644
--- a/src/import/pull-common.h
+++ b/src/import/pull-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/pull-job.c b/src/import/pull-job.c
index 995a652ec3..2b71766798 100644
--- a/src/import/pull-job.c
+++ b/src/import/pull-job.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/pull-job.h b/src/import/pull-job.h
index 412b66cf22..e8becdc002 100644
--- a/src/import/pull-job.h
+++ b/src/import/pull-job.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/pull-raw.c b/src/import/pull-raw.c
index b45ac814a9..8cab72495c 100644
--- a/src/import/pull-raw.c
+++ b/src/import/pull-raw.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/pull-raw.h b/src/import/pull-raw.h
index 6954d98994..c951fc25c1 100644
--- a/src/import/pull-raw.h
+++ b/src/import/pull-raw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/pull-tar.c b/src/import/pull-tar.c
index 12211a6fc6..ed91511245 100644
--- a/src/import/pull-tar.c
+++ b/src/import/pull-tar.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/pull-tar.h b/src/import/pull-tar.h
index 7e63e496d8..9f004acdc6 100644
--- a/src/import/pull-tar.h
+++ b/src/import/pull-tar.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/pull.c b/src/import/pull.c
index 4af5d9c853..46e0fd5acb 100644
--- a/src/import/pull.c
+++ b/src/import/pull.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/qcow2-util.c b/src/import/qcow2-util.c
index 00734865b2..7e37bf4026 100644
--- a/src/import/qcow2-util.c
+++ b/src/import/qcow2-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/import/qcow2-util.h b/src/import/qcow2-util.h
index 6dddac8cdf..ae1fb8fd38 100644
--- a/src/import/qcow2-util.h
+++ b/src/import/qcow2-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/import/test-qcow2.c b/src/import/test-qcow2.c
index b820253d71..428191d18e 100644
--- a/src/import/test-qcow2.c
+++ b/src/import/test-qcow2.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/initctl/initctl.c b/src/initctl/initctl.c
index deb3f1b2a8..5488999727 100644
--- a/src/initctl/initctl.c
+++ b/src/initctl/initctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/journal-gatewayd.c b/src/journal-remote/journal-gatewayd.c
index fec16f7c7c..82c70cfbe3 100644
--- a/src/journal-remote/journal-gatewayd.c
+++ b/src/journal-remote/journal-gatewayd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/journal-remote-parse.c b/src/journal-remote/journal-remote-parse.c
index d61d1c18f6..2c4e28ad71 100644
--- a/src/journal-remote/journal-remote-parse.c
+++ b/src/journal-remote/journal-remote-parse.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/journal-remote-parse.h b/src/journal-remote/journal-remote-parse.h
index e3632528cf..7aa2f0663e 100644
--- a/src/journal-remote/journal-remote-parse.h
+++ b/src/journal-remote/journal-remote-parse.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal-remote/journal-remote-write.c b/src/journal-remote/journal-remote-write.c
index 734cad333f..c5c6abbd5c 100644
--- a/src/journal-remote/journal-remote-write.c
+++ b/src/journal-remote/journal-remote-write.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/journal-remote-write.h b/src/journal-remote/journal-remote-write.h
index e04af54e55..7fffc294ce 100644
--- a/src/journal-remote/journal-remote-write.h
+++ b/src/journal-remote/journal-remote-write.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal-remote/journal-remote.c b/src/journal-remote/journal-remote.c
index 90cd4447d7..01a6543708 100644
--- a/src/journal-remote/journal-remote.c
+++ b/src/journal-remote/journal-remote.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/journal-remote.h b/src/journal-remote/journal-remote.h
index 154ad6272a..30e5c4e995 100644
--- a/src/journal-remote/journal-remote.h
+++ b/src/journal-remote/journal-remote.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal-remote/journal-upload-journal.c b/src/journal-remote/journal-upload-journal.c
index 3a36e46ae0..a9751c25c5 100644
--- a/src/journal-remote/journal-upload-journal.c
+++ b/src/journal-remote/journal-upload-journal.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/journal-upload.c b/src/journal-remote/journal-upload.c
index 1e3e541998..8137799ce8 100644
--- a/src/journal-remote/journal-upload.c
+++ b/src/journal-remote/journal-upload.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/meson.build b/src/journal-remote/meson.build
index ed963d7930..5fdc4cccd7 100644
--- a/src/journal-remote/meson.build
+++ b/src/journal-remote/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_journal_upload_sources = files('''
         journal-upload.h
         journal-upload.c
diff --git a/src/journal-remote/microhttpd-util.c b/src/journal-remote/microhttpd-util.c
index 75c14ec996..2466c4f2b5 100644
--- a/src/journal-remote/microhttpd-util.c
+++ b/src/journal-remote/microhttpd-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal-remote/microhttpd-util.h b/src/journal-remote/microhttpd-util.h
index 4b2e9da30b..76a713068e 100644
--- a/src/journal-remote/microhttpd-util.h
+++ b/src/journal-remote/microhttpd-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/audit-type.c b/src/journal/audit-type.c
index 373d3455ae..0af0364e95 100644
--- a/src/journal/audit-type.c
+++ b/src/journal/audit-type.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/audit-type.h b/src/journal/audit-type.h
index 1dd2163707..01f35c5285 100644
--- a/src/journal/audit-type.h
+++ b/src/journal/audit-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/cat.c b/src/journal/cat.c
index 08c844d44f..b2f9ed5010 100644
--- a/src/journal/cat.c
+++ b/src/journal/cat.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/catalog.c b/src/journal/catalog.c
index bf92da9f90..6775535b17 100644
--- a/src/journal/catalog.c
+++ b/src/journal/catalog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/catalog.h b/src/journal/catalog.h
index 1b1014b335..ce4fa07555 100644
--- a/src/journal/catalog.h
+++ b/src/journal/catalog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/compress.c b/src/journal/compress.c
index 834859b23c..a659459e49 100644
--- a/src/journal/compress.c
+++ b/src/journal/compress.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/compress.h b/src/journal/compress.h
index fb71662a99..917bef0391 100644
--- a/src/journal/compress.h
+++ b/src/journal/compress.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/fsprg.c b/src/journal/fsprg.c
index e7c22880be..281b48904a 100644
--- a/src/journal/fsprg.c
+++ b/src/journal/fsprg.c
@@ -1,4 +1,5 @@
-/*
+/* SPDX-License-Identifier: LGPL-2.1+
+ *
  * fsprg v0.1  -  (seekable) forward-secure pseudorandom generator
  * Copyright (C) 2012 B. Poettering
  * Contact: fsprg@point-at-infinity.org
diff --git a/src/journal/fsprg.h b/src/journal/fsprg.h
index 829b56e240..e0ec8884be 100644
--- a/src/journal/fsprg.h
+++ b/src/journal/fsprg.h
@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
 #ifndef __fsprgh__
 #define __fsprgh__
 
diff --git a/src/journal/journal-authenticate.c b/src/journal/journal-authenticate.c
index d8af113d3f..cff64749a8 100644
--- a/src/journal/journal-authenticate.c
+++ b/src/journal/journal-authenticate.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journal-authenticate.h b/src/journal/journal-authenticate.h
index 6c87319ede..e2866ea258 100644
--- a/src/journal/journal-authenticate.h
+++ b/src/journal/journal-authenticate.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h
index 1bd5de4c43..70ce1ab126 100644
--- a/src/journal/journal-def.h
+++ b/src/journal/journal-def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index 5d70421b76..4da0f3cdab 100644
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journal-file.h b/src/journal/journal-file.h
index 008dba604b..c652687c45 100644
--- a/src/journal/journal-file.h
+++ b/src/journal/journal-file.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journal-internal.h b/src/journal/journal-internal.h
index 34a48141f5..5ec87e83d7 100644
--- a/src/journal/journal-internal.h
+++ b/src/journal/journal-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journal-qrcode.c b/src/journal/journal-qrcode.c
index 4e194bd809..46ff1ce053 100644
--- a/src/journal/journal-qrcode.c
+++ b/src/journal/journal-qrcode.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journal-qrcode.h b/src/journal/journal-qrcode.h
index ef39085561..cb26754ada 100644
--- a/src/journal/journal-qrcode.h
+++ b/src/journal/journal-qrcode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journal-send.c b/src/journal/journal-send.c
index 4acef26394..5bca471c98 100644
--- a/src/journal/journal-send.c
+++ b/src/journal/journal-send.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journal-vacuum.c b/src/journal/journal-vacuum.c
index 12ce2fd56c..c21e87858a 100644
--- a/src/journal/journal-vacuum.c
+++ b/src/journal/journal-vacuum.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journal-vacuum.h b/src/journal/journal-vacuum.h
index 1e750a2170..2aec412385 100644
--- a/src/journal/journal-vacuum.h
+++ b/src/journal/journal-vacuum.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journal-verify.c b/src/journal/journal-verify.c
index e756f51d0f..dc6b21b1e9 100644
--- a/src/journal/journal-verify.c
+++ b/src/journal/journal-verify.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journal-verify.h b/src/journal/journal-verify.h
index 8f0eaf6daa..4f999154f1 100644
--- a/src/journal/journal-verify.h
+++ b/src/journal/journal-verify.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journalctl.c b/src/journal/journalctl.c
index 88c1ac6dd0..a8e90f80bf 100644
--- a/src/journal/journalctl.c
+++ b/src/journal/journalctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-audit.c b/src/journal/journald-audit.c
index 2db923fb49..19f53751cb 100644
--- a/src/journal/journald-audit.c
+++ b/src/journal/journald-audit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-audit.h b/src/journal/journald-audit.h
index 8c7457778c..83dd4bca7a 100644
--- a/src/journal/journald-audit.h
+++ b/src/journal/journald-audit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-console.c b/src/journal/journald-console.c
index 039f1a68ce..f093e468c3 100644
--- a/src/journal/journald-console.c
+++ b/src/journal/journald-console.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-console.h b/src/journal/journald-console.h
index dda07e2c28..3b345507d9 100644
--- a/src/journal/journald-console.h
+++ b/src/journal/journald-console.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-context.c b/src/journal/journald-context.c
index 3a5a97b496..f5345e4cb2 100644
--- a/src/journal/journald-context.c
+++ b/src/journal/journald-context.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-context.h b/src/journal/journald-context.h
index d2a3772f08..e29f59ce5d 100644
--- a/src/journal/journald-context.h
+++ b/src/journal/journald-context.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-kmsg.c b/src/journal/journald-kmsg.c
index b4d3121a0d..5275f43b38 100644
--- a/src/journal/journald-kmsg.c
+++ b/src/journal/journald-kmsg.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-kmsg.h b/src/journal/journald-kmsg.h
index dab49f1e8c..af795eaf63 100644
--- a/src/journal/journald-kmsg.h
+++ b/src/journal/journald-kmsg.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-native.c b/src/journal/journald-native.c
index 5452b88ae2..5c8711fb7c 100644
--- a/src/journal/journald-native.c
+++ b/src/journal/journald-native.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-native.h b/src/journal/journald-native.h
index 1ab415ac85..7ca17ec609 100644
--- a/src/journal/journald-native.h
+++ b/src/journal/journald-native.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-rate-limit.c b/src/journal/journald-rate-limit.c
index a3404222e0..3517ce2e1c 100644
--- a/src/journal/journald-rate-limit.c
+++ b/src/journal/journald-rate-limit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-rate-limit.h b/src/journal/journald-rate-limit.h
index bb0abb7ee9..af7bb495f2 100644
--- a/src/journal/journald-rate-limit.h
+++ b/src/journal/journald-rate-limit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-server.c b/src/journal/journald-server.c
index 033f0b1a8b..8a2ad13a6a 100644
--- a/src/journal/journald-server.c
+++ b/src/journal/journald-server.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-server.h b/src/journal/journald-server.h
index f0076793e1..1f274ecf26 100644
--- a/src/journal/journald-server.h
+++ b/src/journal/journald-server.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-stream.c b/src/journal/journald-stream.c
index 95272db863..1137d4eeed 100644
--- a/src/journal/journald-stream.c
+++ b/src/journal/journald-stream.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-stream.h b/src/journal/journald-stream.h
index db4c67fae3..fd220b5864 100644
--- a/src/journal/journald-stream.h
+++ b/src/journal/journald-stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-syslog.c b/src/journal/journald-syslog.c
index 07f9dae67e..93ca61fc8a 100644
--- a/src/journal/journald-syslog.c
+++ b/src/journal/journald-syslog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-syslog.h b/src/journal/journald-syslog.h
index 46ad715314..3438107c5f 100644
--- a/src/journal/journald-syslog.h
+++ b/src/journal/journald-syslog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald-wall.c b/src/journal/journald-wall.c
index bfe53ce39d..431abfeb32 100644
--- a/src/journal/journald-wall.c
+++ b/src/journal/journald-wall.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/journald-wall.h b/src/journal/journald-wall.h
index ebc2b89fa8..46ceac26bb 100644
--- a/src/journal/journald-wall.h
+++ b/src/journal/journald-wall.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/journald.c b/src/journal/journald.c
index 1ee477cf1c..6d670e2f4f 100644
--- a/src/journal/journald.c
+++ b/src/journal/journald.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/meson.build b/src/journal/meson.build
index da42fd89d2..edb2a1a30e 100644
--- a/src/journal/meson.build
+++ b/src/journal/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 journal_internal_sources = files('''
         audit-type.c
         audit-type.h
diff --git a/src/journal/mmap-cache.c b/src/journal/mmap-cache.c
index ac7252093b..630ae6fbac 100644
--- a/src/journal/mmap-cache.c
+++ b/src/journal/mmap-cache.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/mmap-cache.h b/src/journal/mmap-cache.h
index cf6af1906a..00bcafdfb1 100644
--- a/src/journal/mmap-cache.h
+++ b/src/journal/mmap-cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/journal/sd-journal.c b/src/journal/sd-journal.c
index fc86b99e70..0b6698782d 100644
--- a/src/journal/sd-journal.c
+++ b/src/journal/sd-journal.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-audit-type.c b/src/journal/test-audit-type.c
index 88a2e6d9d9..0f9780380d 100644
--- a/src/journal/test-audit-type.c
+++ b/src/journal/test-audit-type.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-catalog.c b/src/journal/test-catalog.c
index b7d9e7bffa..2ad9909d1b 100644
--- a/src/journal/test-catalog.c
+++ b/src/journal/test-catalog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-compress-benchmark.c b/src/journal/test-compress-benchmark.c
index be5a6655a8..409a876054 100644
--- a/src/journal/test-compress-benchmark.c
+++ b/src/journal/test-compress-benchmark.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/journal/test-compress.c b/src/journal/test-compress.c
index 893f2ab6eb..1b9b186be3 100644
--- a/src/journal/test-compress.c
+++ b/src/journal/test-compress.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/journal/test-journal-enum.c b/src/journal/test-journal-enum.c
index 354c2c3c00..9733eec0e2 100644
--- a/src/journal/test-journal-enum.c
+++ b/src/journal/test-journal-enum.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-flush.c b/src/journal/test-journal-flush.c
index ba8b20b228..f9b7b75ef1 100644
--- a/src/journal/test-journal-flush.c
+++ b/src/journal/test-journal-flush.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-init.c b/src/journal/test-journal-init.c
index ef21e2d05f..074329138b 100644
--- a/src/journal/test-journal-init.c
+++ b/src/journal/test-journal-init.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-interleaving.c b/src/journal/test-journal-interleaving.c
index 35cae23bf8..5a88b2774f 100644
--- a/src/journal/test-journal-interleaving.c
+++ b/src/journal/test-journal-interleaving.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-match.c b/src/journal/test-journal-match.c
index 3ab554b9b0..018e965d67 100644
--- a/src/journal/test-journal-match.c
+++ b/src/journal/test-journal-match.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-send.c b/src/journal/test-journal-send.c
index d70f0b0bc8..833ca415da 100644
--- a/src/journal/test-journal-send.c
+++ b/src/journal/test-journal-send.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-stream.c b/src/journal/test-journal-stream.c
index 7e5a980719..73ed6e5dcb 100644
--- a/src/journal/test-journal-stream.c
+++ b/src/journal/test-journal-stream.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-syslog.c b/src/journal/test-journal-syslog.c
index 4ff7f3ec2e..45ad1196aa 100644
--- a/src/journal/test-journal-syslog.c
+++ b/src/journal/test-journal-syslog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal-verify.c b/src/journal/test-journal-verify.c
index 3d2312fc55..fbb75e43e3 100644
--- a/src/journal/test-journal-verify.c
+++ b/src/journal/test-journal-verify.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-journal.c b/src/journal/test-journal.c
index df685e90b6..517c9102a6 100644
--- a/src/journal/test-journal.c
+++ b/src/journal/test-journal.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/journal/test-mmap-cache.c b/src/journal/test-mmap-cache.c
index 702434efd2..39e7510128 100644
--- a/src/journal/test-mmap-cache.c
+++ b/src/journal/test-mmap-cache.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/kernel-install/kernel-install b/src/kernel-install/kernel-install
index 66bc4a6e8e..6eabb09e3c 100644
--- a/src/kernel-install/kernel-install
+++ b/src/kernel-install/kernel-install
@@ -1,6 +1,7 @@
 #!/bin/bash
 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
 # ex: ts=8 sw=4 sts=4 et filetype=sh
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # This file is part of systemd.
 #
diff --git a/src/kernel-install/meson.build b/src/kernel-install/meson.build
index ede3323bab..65f483f229 100644
--- a/src/kernel-install/meson.build
+++ b/src/kernel-install/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 install_data('kernel-install',
              install_mode : 'rwxr-xr-x',
              install_dir : bindir)
diff --git a/src/libsystemd-network/arp-util.c b/src/libsystemd-network/arp-util.c
index 2e02b3fa66..67409cc918 100644
--- a/src/libsystemd-network/arp-util.c
+++ b/src/libsystemd-network/arp-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/arp-util.h b/src/libsystemd-network/arp-util.h
index 3ef56b002a..decfce3fd6 100644
--- a/src/libsystemd-network/arp-util.h
+++ b/src/libsystemd-network/arp-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp-identifier.c b/src/libsystemd-network/dhcp-identifier.c
index a21efc4d06..f33817ca7d 100644
--- a/src/libsystemd-network/dhcp-identifier.c
+++ b/src/libsystemd-network/dhcp-identifier.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/dhcp-identifier.h b/src/libsystemd-network/dhcp-identifier.h
index 1cc0f9fb71..0ccee7a718 100644
--- a/src/libsystemd-network/dhcp-identifier.h
+++ b/src/libsystemd-network/dhcp-identifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp-internal.h b/src/libsystemd-network/dhcp-internal.h
index 3fdf02da3e..a53526956a 100644
--- a/src/libsystemd-network/dhcp-internal.h
+++ b/src/libsystemd-network/dhcp-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp-lease-internal.h b/src/libsystemd-network/dhcp-lease-internal.h
index 7847ce0709..ac5cc47efd 100644
--- a/src/libsystemd-network/dhcp-lease-internal.h
+++ b/src/libsystemd-network/dhcp-lease-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp-network.c b/src/libsystemd-network/dhcp-network.c
index a440a20f96..010090aef1 100644
--- a/src/libsystemd-network/dhcp-network.c
+++ b/src/libsystemd-network/dhcp-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/dhcp-option.c b/src/libsystemd-network/dhcp-option.c
index c105196334..19fc525866 100644
--- a/src/libsystemd-network/dhcp-option.c
+++ b/src/libsystemd-network/dhcp-option.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/dhcp-packet.c b/src/libsystemd-network/dhcp-packet.c
index 475c5729a0..1c4ab5d52f 100644
--- a/src/libsystemd-network/dhcp-packet.c
+++ b/src/libsystemd-network/dhcp-packet.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/dhcp-protocol.h b/src/libsystemd-network/dhcp-protocol.h
index 5cf7abbff9..73a9f75e75 100644
--- a/src/libsystemd-network/dhcp-protocol.h
+++ b/src/libsystemd-network/dhcp-protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp-server-internal.h b/src/libsystemd-network/dhcp-server-internal.h
index 0c76956fad..8b5620e138 100644
--- a/src/libsystemd-network/dhcp-server-internal.h
+++ b/src/libsystemd-network/dhcp-server-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp6-internal.h b/src/libsystemd-network/dhcp6-internal.h
index f64382c3ca..cb5b359cbe 100644
--- a/src/libsystemd-network/dhcp6-internal.h
+++ b/src/libsystemd-network/dhcp6-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp6-lease-internal.h b/src/libsystemd-network/dhcp6-lease-internal.h
index 14e708ef63..a3f00d4a5d 100644
--- a/src/libsystemd-network/dhcp6-lease-internal.h
+++ b/src/libsystemd-network/dhcp6-lease-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/dhcp6-network.c b/src/libsystemd-network/dhcp6-network.c
index fd2d60c9d5..b3b8fddbcb 100644
--- a/src/libsystemd-network/dhcp6-network.c
+++ b/src/libsystemd-network/dhcp6-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/dhcp6-option.c b/src/libsystemd-network/dhcp6-option.c
index 0d4f404a3e..f346bda5fc 100644
--- a/src/libsystemd-network/dhcp6-option.c
+++ b/src/libsystemd-network/dhcp6-option.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/dhcp6-protocol.h b/src/libsystemd-network/dhcp6-protocol.h
index 975d35023f..7bbf183996 100644
--- a/src/libsystemd-network/dhcp6-protocol.h
+++ b/src/libsystemd-network/dhcp6-protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/icmp6-util.c b/src/libsystemd-network/icmp6-util.c
index cf69044d6d..dd4e28bfd9 100644
--- a/src/libsystemd-network/icmp6-util.c
+++ b/src/libsystemd-network/icmp6-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/icmp6-util.h b/src/libsystemd-network/icmp6-util.h
index 16b8be8298..ce14f41736 100644
--- a/src/libsystemd-network/icmp6-util.h
+++ b/src/libsystemd-network/icmp6-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/lldp-internal.h b/src/libsystemd-network/lldp-internal.h
index becc162fab..2673aa1c55 100644
--- a/src/libsystemd-network/lldp-internal.h
+++ b/src/libsystemd-network/lldp-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/lldp-neighbor.c b/src/libsystemd-network/lldp-neighbor.c
index f1fecba6fa..1a6ea288aa 100644
--- a/src/libsystemd-network/lldp-neighbor.c
+++ b/src/libsystemd-network/lldp-neighbor.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/lldp-neighbor.h b/src/libsystemd-network/lldp-neighbor.h
index c1a7606d06..76d4c0c724 100644
--- a/src/libsystemd-network/lldp-neighbor.h
+++ b/src/libsystemd-network/lldp-neighbor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/lldp-network.c b/src/libsystemd-network/lldp-network.c
index ae2f6744d5..cb3841ef22 100644
--- a/src/libsystemd-network/lldp-network.c
+++ b/src/libsystemd-network/lldp-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/lldp-network.h b/src/libsystemd-network/lldp-network.h
index c4cf8c79f1..c0f8cbe1c9 100644
--- a/src/libsystemd-network/lldp-network.h
+++ b/src/libsystemd-network/lldp-network.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/meson.build b/src/libsystemd-network/meson.build
index 78c74560b8..c710ab44a9 100644
--- a/src/libsystemd-network/meson.build
+++ b/src/libsystemd-network/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 sources = files('''
         sd-dhcp-client.c
         sd-dhcp-server.c
diff --git a/src/libsystemd-network/ndisc-internal.h b/src/libsystemd-network/ndisc-internal.h
index 82b896dba3..2743d85efc 100644
--- a/src/libsystemd-network/ndisc-internal.h
+++ b/src/libsystemd-network/ndisc-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/ndisc-router.c b/src/libsystemd-network/ndisc-router.c
index 845a6b7c6c..2954928d00 100644
--- a/src/libsystemd-network/ndisc-router.c
+++ b/src/libsystemd-network/ndisc-router.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/ndisc-router.h b/src/libsystemd-network/ndisc-router.h
index 1fe703da63..f3757f6dbb 100644
--- a/src/libsystemd-network/ndisc-router.h
+++ b/src/libsystemd-network/ndisc-router.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/network-internal.c b/src/libsystemd-network/network-internal.c
index 337241a815..e48b7d22dd 100644
--- a/src/libsystemd-network/network-internal.c
+++ b/src/libsystemd-network/network-internal.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
  This file is part of systemd.
 
diff --git a/src/libsystemd-network/network-internal.h b/src/libsystemd-network/network-internal.h
index 4666f174e9..a54adac602 100644
--- a/src/libsystemd-network/network-internal.h
+++ b/src/libsystemd-network/network-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/radv-internal.h b/src/libsystemd-network/radv-internal.h
index b4d0becdd1..441939b717 100644
--- a/src/libsystemd-network/radv-internal.h
+++ b/src/libsystemd-network/radv-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd-network/sd-dhcp-client.c b/src/libsystemd-network/sd-dhcp-client.c
index d30755115e..536bfef99e 100644
--- a/src/libsystemd-network/sd-dhcp-client.c
+++ b/src/libsystemd-network/sd-dhcp-client.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-dhcp-lease.c b/src/libsystemd-network/sd-dhcp-lease.c
index 1ab569765d..ec5ecaeabc 100644
--- a/src/libsystemd-network/sd-dhcp-lease.c
+++ b/src/libsystemd-network/sd-dhcp-lease.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-dhcp-server.c b/src/libsystemd-network/sd-dhcp-server.c
index 663fd0e41d..660358e857 100644
--- a/src/libsystemd-network/sd-dhcp-server.c
+++ b/src/libsystemd-network/sd-dhcp-server.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-dhcp6-client.c b/src/libsystemd-network/sd-dhcp6-client.c
index d7252524cd..4fec89d2e3 100644
--- a/src/libsystemd-network/sd-dhcp6-client.c
+++ b/src/libsystemd-network/sd-dhcp6-client.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-dhcp6-lease.c b/src/libsystemd-network/sd-dhcp6-lease.c
index 8396407e9f..6f604e072f 100644
--- a/src/libsystemd-network/sd-dhcp6-lease.c
+++ b/src/libsystemd-network/sd-dhcp6-lease.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-ipv4acd.c b/src/libsystemd-network/sd-ipv4acd.c
index 909b470251..1b2530ea33 100644
--- a/src/libsystemd-network/sd-ipv4acd.c
+++ b/src/libsystemd-network/sd-ipv4acd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-ipv4ll.c b/src/libsystemd-network/sd-ipv4ll.c
index 88a90e593b..23e2f5211d 100644
--- a/src/libsystemd-network/sd-ipv4ll.c
+++ b/src/libsystemd-network/sd-ipv4ll.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-lldp.c b/src/libsystemd-network/sd-lldp.c
index 0f591a8011..2c05416184 100644
--- a/src/libsystemd-network/sd-lldp.c
+++ b/src/libsystemd-network/sd-lldp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-ndisc.c b/src/libsystemd-network/sd-ndisc.c
index 4bf558b12b..b5c6d6e84d 100644
--- a/src/libsystemd-network/sd-ndisc.c
+++ b/src/libsystemd-network/sd-ndisc.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/sd-radv.c b/src/libsystemd-network/sd-radv.c
index e4d12977cd..46704acdef 100644
--- a/src/libsystemd-network/sd-radv.c
+++ b/src/libsystemd-network/sd-radv.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-acd.c b/src/libsystemd-network/test-acd.c
index 27fcc332a3..7968c9056a 100644
--- a/src/libsystemd-network/test-acd.c
+++ b/src/libsystemd-network/test-acd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-dhcp-client.c b/src/libsystemd-network/test-dhcp-client.c
index e71f2a4d1d..0e25310e59 100644
--- a/src/libsystemd-network/test-dhcp-client.c
+++ b/src/libsystemd-network/test-dhcp-client.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-dhcp-server.c b/src/libsystemd-network/test-dhcp-server.c
index 26f217835f..6632316b1e 100644
--- a/src/libsystemd-network/test-dhcp-server.c
+++ b/src/libsystemd-network/test-dhcp-server.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-dhcp6-client.c b/src/libsystemd-network/test-dhcp6-client.c
index 8949864e29..a0418ecdb9 100644
--- a/src/libsystemd-network/test-dhcp6-client.c
+++ b/src/libsystemd-network/test-dhcp6-client.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-ipv4ll-manual.c b/src/libsystemd-network/test-ipv4ll-manual.c
index 2b1387fa91..37092ea300 100644
--- a/src/libsystemd-network/test-ipv4ll-manual.c
+++ b/src/libsystemd-network/test-ipv4ll-manual.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-ipv4ll.c b/src/libsystemd-network/test-ipv4ll.c
index 89864fd39c..d0620596e5 100644
--- a/src/libsystemd-network/test-ipv4ll.c
+++ b/src/libsystemd-network/test-ipv4ll.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-lldp.c b/src/libsystemd-network/test-lldp.c
index 430c58ae60..c62689373f 100644
--- a/src/libsystemd-network/test-lldp.c
+++ b/src/libsystemd-network/test-lldp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-ndisc-ra.c b/src/libsystemd-network/test-ndisc-ra.c
index 18205ef2c9..5914fa2bf0 100644
--- a/src/libsystemd-network/test-ndisc-ra.c
+++ b/src/libsystemd-network/test-ndisc-ra.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd-network/test-ndisc-rs.c b/src/libsystemd-network/test-ndisc-rs.c
index 95c9311fc2..e1a2b9f7a2 100644
--- a/src/libsystemd-network/test-ndisc-rs.c
+++ b/src/libsystemd-network/test-ndisc-rs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/libsystemd.pc.in b/src/libsystemd/libsystemd.pc.in
index 7e6d4999cb..c861905b67 100644
--- a/src/libsystemd/libsystemd.pc.in
+++ b/src/libsystemd/libsystemd.pc.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/libsystemd/libsystemd.sym b/src/libsystemd/libsystemd.sym
index 2becf104d7..1a29b03e85 100644
--- a/src/libsystemd/libsystemd.sym
+++ b/src/libsystemd/libsystemd.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/libsystemd/meson.build b/src/libsystemd/meson.build
index 8807517a1a..4abf50b111 100644
--- a/src/libsystemd/meson.build
+++ b/src/libsystemd/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 sd_login_c = files('sd-login/sd-login.c')
 
 libsystemd_internal_sources = files('''
diff --git a/src/libsystemd/sd-bus/bus-bloom.c b/src/libsystemd/sd-bus/bus-bloom.c
index 112769fcb6..ebda6516e2 100644
--- a/src/libsystemd/sd-bus/bus-bloom.c
+++ b/src/libsystemd/sd-bus/bus-bloom.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-bloom.h b/src/libsystemd/sd-bus/bus-bloom.h
index c824622b95..2650762145 100644
--- a/src/libsystemd/sd-bus/bus-bloom.h
+++ b/src/libsystemd/sd-bus/bus-bloom.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-common-errors.c b/src/libsystemd/sd-bus/bus-common-errors.c
index b40ba2520c..07a1f50047 100644
--- a/src/libsystemd/sd-bus/bus-common-errors.c
+++ b/src/libsystemd/sd-bus/bus-common-errors.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-common-errors.h b/src/libsystemd/sd-bus/bus-common-errors.h
index 4523be05ce..7317b174b3 100644
--- a/src/libsystemd/sd-bus/bus-common-errors.h
+++ b/src/libsystemd/sd-bus/bus-common-errors.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-container.c b/src/libsystemd/sd-bus/bus-container.c
index 9827a42267..8f6d34838e 100644
--- a/src/libsystemd/sd-bus/bus-container.c
+++ b/src/libsystemd/sd-bus/bus-container.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-container.h b/src/libsystemd/sd-bus/bus-container.h
index 35952d9256..6921ffd52d 100644
--- a/src/libsystemd/sd-bus/bus-container.h
+++ b/src/libsystemd/sd-bus/bus-container.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-control.c b/src/libsystemd/sd-bus/bus-control.c
index fcd4d27e07..12478e7cc6 100644
--- a/src/libsystemd/sd-bus/bus-control.c
+++ b/src/libsystemd/sd-bus/bus-control.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-control.h b/src/libsystemd/sd-bus/bus-control.h
index 01c71874db..c9d434c607 100644
--- a/src/libsystemd/sd-bus/bus-control.h
+++ b/src/libsystemd/sd-bus/bus-control.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-convenience.c b/src/libsystemd/sd-bus/bus-convenience.c
index e171c53e21..9d3b596429 100644
--- a/src/libsystemd/sd-bus/bus-convenience.c
+++ b/src/libsystemd/sd-bus/bus-convenience.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-creds.c b/src/libsystemd/sd-bus/bus-creds.c
index 21a15c8d60..b6ef4a0fe5 100644
--- a/src/libsystemd/sd-bus/bus-creds.c
+++ b/src/libsystemd/sd-bus/bus-creds.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-creds.h b/src/libsystemd/sd-bus/bus-creds.h
index df8a1f1005..c4c60fa2d7 100644
--- a/src/libsystemd/sd-bus/bus-creds.h
+++ b/src/libsystemd/sd-bus/bus-creds.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-dump.c b/src/libsystemd/sd-bus/bus-dump.c
index f117c98c11..2d93e1e437 100644
--- a/src/libsystemd/sd-bus/bus-dump.c
+++ b/src/libsystemd/sd-bus/bus-dump.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-dump.h b/src/libsystemd/sd-bus/bus-dump.h
index 874e86d09c..ab3b039203 100644
--- a/src/libsystemd/sd-bus/bus-dump.h
+++ b/src/libsystemd/sd-bus/bus-dump.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-error.c b/src/libsystemd/sd-bus/bus-error.c
index 378f7a377a..c9517499d7 100644
--- a/src/libsystemd/sd-bus/bus-error.c
+++ b/src/libsystemd/sd-bus/bus-error.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-error.h b/src/libsystemd/sd-bus/bus-error.h
index e2c4cf4b3f..6181e37d81 100644
--- a/src/libsystemd/sd-bus/bus-error.h
+++ b/src/libsystemd/sd-bus/bus-error.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-gvariant.c b/src/libsystemd/sd-bus/bus-gvariant.c
index 58782767fa..6a990a02c0 100644
--- a/src/libsystemd/sd-bus/bus-gvariant.c
+++ b/src/libsystemd/sd-bus/bus-gvariant.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-gvariant.h b/src/libsystemd/sd-bus/bus-gvariant.h
index 6da637fb05..474e131566 100644
--- a/src/libsystemd/sd-bus/bus-gvariant.h
+++ b/src/libsystemd/sd-bus/bus-gvariant.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-internal.c b/src/libsystemd/sd-bus/bus-internal.c
index dacd243c3e..3c381b0ffe 100644
--- a/src/libsystemd/sd-bus/bus-internal.c
+++ b/src/libsystemd/sd-bus/bus-internal.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-internal.h b/src/libsystemd/sd-bus/bus-internal.h
index 3af383e18b..378c408ea3 100644
--- a/src/libsystemd/sd-bus/bus-internal.h
+++ b/src/libsystemd/sd-bus/bus-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-introspect.c b/src/libsystemd/sd-bus/bus-introspect.c
index 9fcb59631c..8a6e041748 100644
--- a/src/libsystemd/sd-bus/bus-introspect.c
+++ b/src/libsystemd/sd-bus/bus-introspect.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-introspect.h b/src/libsystemd/sd-bus/bus-introspect.h
index 8e2f3800ca..5d2d5a17dd 100644
--- a/src/libsystemd/sd-bus/bus-introspect.h
+++ b/src/libsystemd/sd-bus/bus-introspect.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-kernel.c b/src/libsystemd/sd-bus/bus-kernel.c
index 5a3c4d6f50..c6179b4d95 100644
--- a/src/libsystemd/sd-bus/bus-kernel.c
+++ b/src/libsystemd/sd-bus/bus-kernel.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-kernel.h b/src/libsystemd/sd-bus/bus-kernel.h
index 49c0ab3a3c..d9f80935fe 100644
--- a/src/libsystemd/sd-bus/bus-kernel.h
+++ b/src/libsystemd/sd-bus/bus-kernel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-match.c b/src/libsystemd/sd-bus/bus-match.c
index a972c13054..d5831a288c 100644
--- a/src/libsystemd/sd-bus/bus-match.c
+++ b/src/libsystemd/sd-bus/bus-match.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-match.h b/src/libsystemd/sd-bus/bus-match.h
index 8cbbb63b11..ac2e51a422 100644
--- a/src/libsystemd/sd-bus/bus-match.h
+++ b/src/libsystemd/sd-bus/bus-match.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 4d306087d6..8a33d462b4 100644
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-message.h b/src/libsystemd/sd-bus/bus-message.h
index 259ed15ea3..1e4b20926d 100644
--- a/src/libsystemd/sd-bus/bus-message.h
+++ b/src/libsystemd/sd-bus/bus-message.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-objects.c b/src/libsystemd/sd-bus/bus-objects.c
index 0c9b2d36b0..1957654d28 100644
--- a/src/libsystemd/sd-bus/bus-objects.c
+++ b/src/libsystemd/sd-bus/bus-objects.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-objects.h b/src/libsystemd/sd-bus/bus-objects.h
index e0b8c534ed..6bffeda726 100644
--- a/src/libsystemd/sd-bus/bus-objects.h
+++ b/src/libsystemd/sd-bus/bus-objects.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-protocol.h b/src/libsystemd/sd-bus/bus-protocol.h
index 9d180cb284..0d5dfd9474 100644
--- a/src/libsystemd/sd-bus/bus-protocol.h
+++ b/src/libsystemd/sd-bus/bus-protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-signature.c b/src/libsystemd/sd-bus/bus-signature.c
index 7bc243494a..d16461f4ae 100644
--- a/src/libsystemd/sd-bus/bus-signature.c
+++ b/src/libsystemd/sd-bus/bus-signature.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-signature.h b/src/libsystemd/sd-bus/bus-signature.h
index 1e0cd7f587..a6be1844e2 100644
--- a/src/libsystemd/sd-bus/bus-signature.h
+++ b/src/libsystemd/sd-bus/bus-signature.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-slot.c b/src/libsystemd/sd-bus/bus-slot.c
index 725265b331..756761c3ed 100644
--- a/src/libsystemd/sd-bus/bus-slot.c
+++ b/src/libsystemd/sd-bus/bus-slot.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-slot.h b/src/libsystemd/sd-bus/bus-slot.h
index 3b8b94dc6b..beebaa1670 100644
--- a/src/libsystemd/sd-bus/bus-slot.h
+++ b/src/libsystemd/sd-bus/bus-slot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-socket.c b/src/libsystemd/sd-bus/bus-socket.c
index 235fe26393..80cec897c1 100644
--- a/src/libsystemd/sd-bus/bus-socket.c
+++ b/src/libsystemd/sd-bus/bus-socket.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-socket.h b/src/libsystemd/sd-bus/bus-socket.h
index 684feead74..915a283f5a 100644
--- a/src/libsystemd/sd-bus/bus-socket.h
+++ b/src/libsystemd/sd-bus/bus-socket.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-track.c b/src/libsystemd/sd-bus/bus-track.c
index 4acaf24793..75930f33ba 100644
--- a/src/libsystemd/sd-bus/bus-track.c
+++ b/src/libsystemd/sd-bus/bus-track.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-track.h b/src/libsystemd/sd-bus/bus-track.h
index 26bd05f5c7..0c5636b7e0 100644
--- a/src/libsystemd/sd-bus/bus-track.h
+++ b/src/libsystemd/sd-bus/bus-track.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/bus-type.c b/src/libsystemd/sd-bus/bus-type.c
index c692afc580..fe486f441d 100644
--- a/src/libsystemd/sd-bus/bus-type.c
+++ b/src/libsystemd/sd-bus/bus-type.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/bus-type.h b/src/libsystemd/sd-bus/bus-type.h
index 5c87eb5f08..ae272b1e6a 100644
--- a/src/libsystemd/sd-bus/bus-type.h
+++ b/src/libsystemd/sd-bus/bus-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-bus/sd-bus.c b/src/libsystemd/sd-bus/sd-bus.c
index 76b3e83158..26ca669655 100644
--- a/src/libsystemd/sd-bus/sd-bus.c
+++ b/src/libsystemd/sd-bus/sd-bus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-benchmark.c b/src/libsystemd/sd-bus/test-bus-benchmark.c
index 2bb435b976..a466cddd75 100644
--- a/src/libsystemd/sd-bus/test-bus-benchmark.c
+++ b/src/libsystemd/sd-bus/test-bus-benchmark.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-chat.c b/src/libsystemd/sd-bus/test-bus-chat.c
index 0fc6fc90ed..1b2efb9bb4 100644
--- a/src/libsystemd/sd-bus/test-bus-chat.c
+++ b/src/libsystemd/sd-bus/test-bus-chat.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-cleanup.c b/src/libsystemd/sd-bus/test-bus-cleanup.c
index 4d81e67a6b..d5601fc57b 100644
--- a/src/libsystemd/sd-bus/test-bus-cleanup.c
+++ b/src/libsystemd/sd-bus/test-bus-cleanup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-creds.c b/src/libsystemd/sd-bus/test-bus-creds.c
index 64bd76a576..f654692bf6 100644
--- a/src/libsystemd/sd-bus/test-bus-creds.c
+++ b/src/libsystemd/sd-bus/test-bus-creds.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-error.c b/src/libsystemd/sd-bus/test-bus-error.c
index 66a3874f10..4e3f404e68 100644
--- a/src/libsystemd/sd-bus/test-bus-error.c
+++ b/src/libsystemd/sd-bus/test-bus-error.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-gvariant.c b/src/libsystemd/sd-bus/test-bus-gvariant.c
index 0bcaed9d51..4c372fd05a 100644
--- a/src/libsystemd/sd-bus/test-bus-gvariant.c
+++ b/src/libsystemd/sd-bus/test-bus-gvariant.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-introspect.c b/src/libsystemd/sd-bus/test-bus-introspect.c
index 4425cfae26..8dee936768 100644
--- a/src/libsystemd/sd-bus/test-bus-introspect.c
+++ b/src/libsystemd/sd-bus/test-bus-introspect.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-marshal.c b/src/libsystemd/sd-bus/test-bus-marshal.c
index 8c8d14888f..ebf55e873c 100644
--- a/src/libsystemd/sd-bus/test-bus-marshal.c
+++ b/src/libsystemd/sd-bus/test-bus-marshal.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-match.c b/src/libsystemd/sd-bus/test-bus-match.c
index 9d7fe5af85..47b45647c2 100644
--- a/src/libsystemd/sd-bus/test-bus-match.c
+++ b/src/libsystemd/sd-bus/test-bus-match.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-objects.c b/src/libsystemd/sd-bus/test-bus-objects.c
index 0b33ab7a3a..58ef8b6389 100644
--- a/src/libsystemd/sd-bus/test-bus-objects.c
+++ b/src/libsystemd/sd-bus/test-bus-objects.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-server.c b/src/libsystemd/sd-bus/test-bus-server.c
index b6272efc30..245f5707e1 100644
--- a/src/libsystemd/sd-bus/test-bus-server.c
+++ b/src/libsystemd/sd-bus/test-bus-server.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-signature.c b/src/libsystemd/sd-bus/test-bus-signature.c
index 4f4fd093bf..aa6160d1c9 100644
--- a/src/libsystemd/sd-bus/test-bus-signature.c
+++ b/src/libsystemd/sd-bus/test-bus-signature.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-bus/test-bus-track.c b/src/libsystemd/sd-bus/test-bus-track.c
index 5f5661cb33..320e8347f4 100644
--- a/src/libsystemd/sd-bus/test-bus-track.c
+++ b/src/libsystemd/sd-bus/test-bus-track.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-daemon/sd-daemon.c b/src/libsystemd/sd-daemon/sd-daemon.c
index c73647921c..64a74929bf 100644
--- a/src/libsystemd/sd-daemon/sd-daemon.c
+++ b/src/libsystemd/sd-daemon/sd-daemon.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-device/device-enumerator-private.h b/src/libsystemd/sd-device/device-enumerator-private.h
index eb06f9542d..5a46ec5f2b 100644
--- a/src/libsystemd/sd-device/device-enumerator-private.h
+++ b/src/libsystemd/sd-device/device-enumerator-private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-device/device-enumerator.c b/src/libsystemd/sd-device/device-enumerator.c
index ebb8b2d160..04f50e2ad0 100644
--- a/src/libsystemd/sd-device/device-enumerator.c
+++ b/src/libsystemd/sd-device/device-enumerator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-device/device-internal.h b/src/libsystemd/sd-device/device-internal.h
index 0505a27304..6be84f9575 100644
--- a/src/libsystemd/sd-device/device-internal.h
+++ b/src/libsystemd/sd-device/device-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-device/device-private.c b/src/libsystemd/sd-device/device-private.c
index 8839c3266c..587908b190 100644
--- a/src/libsystemd/sd-device/device-private.c
+++ b/src/libsystemd/sd-device/device-private.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-device/device-private.h b/src/libsystemd/sd-device/device-private.h
index 29b3e155fb..02d93c98f9 100644
--- a/src/libsystemd/sd-device/device-private.h
+++ b/src/libsystemd/sd-device/device-private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-device/device-util.h b/src/libsystemd/sd-device/device-util.h
index 5b42e11de6..d55b810d2a 100644
--- a/src/libsystemd/sd-device/device-util.h
+++ b/src/libsystemd/sd-device/device-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/sd-device/sd-device.c
index 3b5a04d1c3..273cbaeb42 100644
--- a/src/libsystemd/sd-device/sd-device.c
+++ b/src/libsystemd/sd-device/sd-device.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-event/sd-event.c b/src/libsystemd/sd-event/sd-event.c
index 2c5c2ebb4d..a5f3e854b1 100644
--- a/src/libsystemd/sd-event/sd-event.c
+++ b/src/libsystemd/sd-event/sd-event.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-event/test-event.c b/src/libsystemd/sd-event/test-event.c
index 9fa544ab0a..7f32838c6f 100644
--- a/src/libsystemd/sd-event/test-event.c
+++ b/src/libsystemd/sd-event/test-event.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-hwdb/hwdb-internal.h b/src/libsystemd/sd-hwdb/hwdb-internal.h
index 2f4934ae8b..36dae8c755 100644
--- a/src/libsystemd/sd-hwdb/hwdb-internal.h
+++ b/src/libsystemd/sd-hwdb/hwdb-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-hwdb/hwdb-util.h b/src/libsystemd/sd-hwdb/hwdb-util.h
index 5e21e5008b..b3053524e7 100644
--- a/src/libsystemd/sd-hwdb/hwdb-util.h
+++ b/src/libsystemd/sd-hwdb/hwdb-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-hwdb/sd-hwdb.c b/src/libsystemd/sd-hwdb/sd-hwdb.c
index f8246eaa70..9418e8cf38 100644
--- a/src/libsystemd/sd-hwdb/sd-hwdb.c
+++ b/src/libsystemd/sd-hwdb/sd-hwdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-id128/id128-util.c b/src/libsystemd/sd-id128/id128-util.c
index f5c017ff8b..260a11dfc1 100644
--- a/src/libsystemd/sd-id128/id128-util.c
+++ b/src/libsystemd/sd-id128/id128-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-id128/id128-util.h b/src/libsystemd/sd-id128/id128-util.h
index 6b3855acbb..9f3340e581 100644
--- a/src/libsystemd/sd-id128/id128-util.h
+++ b/src/libsystemd/sd-id128/id128-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-id128/sd-id128.c b/src/libsystemd/sd-id128/sd-id128.c
index d44d75ece8..561bcdf4f1 100644
--- a/src/libsystemd/sd-id128/sd-id128.c
+++ b/src/libsystemd/sd-id128/sd-id128.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-login/sd-login.c b/src/libsystemd/sd-login/sd-login.c
index 5fb7fd99d5..e8adaa6823 100644
--- a/src/libsystemd/sd-login/sd-login.c
+++ b/src/libsystemd/sd-login/sd-login.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-login/test-login.c b/src/libsystemd/sd-login/test-login.c
index 02a73f9189..559529ecf6 100644
--- a/src/libsystemd/sd-login/test-login.c
+++ b/src/libsystemd/sd-login/test-login.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/local-addresses.c b/src/libsystemd/sd-netlink/local-addresses.c
index d82ca806a4..23acec4061 100644
--- a/src/libsystemd/sd-netlink/local-addresses.c
+++ b/src/libsystemd/sd-netlink/local-addresses.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/local-addresses.h b/src/libsystemd/sd-netlink/local-addresses.h
index 18d71e797e..f722242821 100644
--- a/src/libsystemd/sd-netlink/local-addresses.h
+++ b/src/libsystemd/sd-netlink/local-addresses.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-netlink/netlink-internal.h b/src/libsystemd/sd-netlink/netlink-internal.h
index dcfb080ad3..f045ff67ca 100644
--- a/src/libsystemd/sd-netlink/netlink-internal.h
+++ b/src/libsystemd/sd-netlink/netlink-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-netlink/netlink-message.c b/src/libsystemd/sd-netlink/netlink-message.c
index ac0427f949..c88754540e 100644
--- a/src/libsystemd/sd-netlink/netlink-message.c
+++ b/src/libsystemd/sd-netlink/netlink-message.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/netlink-socket.c b/src/libsystemd/sd-netlink/netlink-socket.c
index 129bfd2d80..22be94382a 100644
--- a/src/libsystemd/sd-netlink/netlink-socket.c
+++ b/src/libsystemd/sd-netlink/netlink-socket.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/netlink-types.c b/src/libsystemd/sd-netlink/netlink-types.c
index 979dc6824f..9e454702d5 100644
--- a/src/libsystemd/sd-netlink/netlink-types.c
+++ b/src/libsystemd/sd-netlink/netlink-types.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/netlink-types.h b/src/libsystemd/sd-netlink/netlink-types.h
index ae65c1d8e4..ee20edac6f 100644
--- a/src/libsystemd/sd-netlink/netlink-types.h
+++ b/src/libsystemd/sd-netlink/netlink-types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-netlink/netlink-util.c b/src/libsystemd/sd-netlink/netlink-util.c
index 6b660b7dbf..b32fad271a 100644
--- a/src/libsystemd/sd-netlink/netlink-util.c
+++ b/src/libsystemd/sd-netlink/netlink-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
  This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/netlink-util.h b/src/libsystemd/sd-netlink/netlink-util.h
index d2fb651204..c804f5514c 100644
--- a/src/libsystemd/sd-netlink/netlink-util.h
+++ b/src/libsystemd/sd-netlink/netlink-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-netlink/rtnl-message.c b/src/libsystemd/sd-netlink/rtnl-message.c
index d851ac228f..24345c4298 100644
--- a/src/libsystemd/sd-netlink/rtnl-message.c
+++ b/src/libsystemd/sd-netlink/rtnl-message.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/sd-netlink.c b/src/libsystemd/sd-netlink/sd-netlink.c
index 77f4d5b635..924b0c954f 100644
--- a/src/libsystemd/sd-netlink/sd-netlink.c
+++ b/src/libsystemd/sd-netlink/sd-netlink.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/test-local-addresses.c b/src/libsystemd/sd-netlink/test-local-addresses.c
index e0e28cc0cc..bb195b9de9 100644
--- a/src/libsystemd/sd-netlink/test-local-addresses.c
+++ b/src/libsystemd/sd-netlink/test-local-addresses.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-netlink/test-netlink.c b/src/libsystemd/sd-netlink/test-netlink.c
index 83f0395dfe..73e5af0060 100644
--- a/src/libsystemd/sd-netlink/test-netlink.c
+++ b/src/libsystemd/sd-netlink/test-netlink.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-network/network-util.c b/src/libsystemd/sd-network/network-util.c
index a0d9b5f1a4..0957d593e0 100644
--- a/src/libsystemd/sd-network/network-util.c
+++ b/src/libsystemd/sd-network/network-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-network/network-util.h b/src/libsystemd/sd-network/network-util.h
index 26780dce28..9c6b3fc0f0 100644
--- a/src/libsystemd/sd-network/network-util.h
+++ b/src/libsystemd/sd-network/network-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libsystemd/sd-network/sd-network.c b/src/libsystemd/sd-network/sd-network.c
index 41b97ca1f3..e0f38b62aa 100644
--- a/src/libsystemd/sd-network/sd-network.c
+++ b/src/libsystemd/sd-network/sd-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-path/sd-path.c b/src/libsystemd/sd-path/sd-path.c
index 6570d01392..cd76e3507c 100644
--- a/src/libsystemd/sd-path/sd-path.c
+++ b/src/libsystemd/sd-path/sd-path.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-resolve/sd-resolve.c b/src/libsystemd/sd-resolve/sd-resolve.c
index 12fae65e6b..986768e7b3 100644
--- a/src/libsystemd/sd-resolve/sd-resolve.c
+++ b/src/libsystemd/sd-resolve/sd-resolve.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-resolve/test-resolve.c b/src/libsystemd/sd-resolve/test-resolve.c
index 1be1a7f8a7..93083f8975 100644
--- a/src/libsystemd/sd-resolve/test-resolve.c
+++ b/src/libsystemd/sd-resolve/test-resolve.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libsystemd/sd-utf8/sd-utf8.c b/src/libsystemd/sd-utf8/sd-utf8.c
index 33a5a04ea1..b8db7eb093 100644
--- a/src/libsystemd/sd-utf8/sd-utf8.c
+++ b/src/libsystemd/sd-utf8/sd-utf8.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-device-internal.h b/src/libudev/libudev-device-internal.h
index 0e9af8ec09..445acd91a7 100644
--- a/src/libudev/libudev-device-internal.h
+++ b/src/libudev/libudev-device-internal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/libudev/libudev-device-private.c b/src/libudev/libudev-device-private.c
index 2aae0726c1..868926e72b 100644
--- a/src/libudev/libudev-device-private.c
+++ b/src/libudev/libudev-device-private.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-device.c b/src/libudev/libudev-device.c
index c5f36725dc..82df426491 100644
--- a/src/libudev/libudev-device.c
+++ b/src/libudev/libudev-device.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-enumerate.c b/src/libudev/libudev-enumerate.c
index ea80c750c9..271880075e 100644
--- a/src/libudev/libudev-enumerate.c
+++ b/src/libudev/libudev-enumerate.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-hwdb.c b/src/libudev/libudev-hwdb.c
index 4bdc37d973..5edb0bea7e 100644
--- a/src/libudev/libudev-hwdb.c
+++ b/src/libudev/libudev-hwdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-list.c b/src/libudev/libudev-list.c
index 0d51322a15..29fbdbd450 100644
--- a/src/libudev/libudev-list.c
+++ b/src/libudev/libudev-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-monitor.c b/src/libudev/libudev-monitor.c
index 32f2154b36..e43d712195 100644
--- a/src/libudev/libudev-monitor.c
+++ b/src/libudev/libudev-monitor.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-private.h b/src/libudev/libudev-private.h
index 818da8465e..76730cc055 100644
--- a/src/libudev/libudev-private.h
+++ b/src/libudev/libudev-private.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-queue.c b/src/libudev/libudev-queue.c
index f3143d4615..b1e41c086d 100644
--- a/src/libudev/libudev-queue.c
+++ b/src/libudev/libudev-queue.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev-util.c b/src/libudev/libudev-util.c
index ae809d85e1..977caad86d 100644
--- a/src/libudev/libudev-util.c
+++ b/src/libudev/libudev-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev.c b/src/libudev/libudev.c
index ce8d5b5760..475b94f913 100644
--- a/src/libudev/libudev.c
+++ b/src/libudev/libudev.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev.h b/src/libudev/libudev.h
index 3f6d0ed16c..be465a0043 100644
--- a/src/libudev/libudev.h
+++ b/src/libudev/libudev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/libudev/libudev.pc.in b/src/libudev/libudev.pc.in
index 1becae45fd..69f5c6463e 100644
--- a/src/libudev/libudev.pc.in
+++ b/src/libudev/libudev.pc.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/libudev/libudev.sym b/src/libudev/libudev.sym
index 76726fca77..1e8dbfa056 100644
--- a/src/libudev/libudev.sym
+++ b/src/libudev/libudev.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/libudev/meson.build b/src/libudev/meson.build
index 57d678fa97..30d6721b60 100644
--- a/src/libudev/meson.build
+++ b/src/libudev/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 libudev_sources = files('''
         libudev-private.h
         libudev-device-internal.h
diff --git a/src/locale/keymap-util.c b/src/locale/keymap-util.c
index b71091f706..1140ce299c 100644
--- a/src/locale/keymap-util.c
+++ b/src/locale/keymap-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/locale/keymap-util.h b/src/locale/keymap-util.h
index 20ef2a4a34..371bbf2622 100644
--- a/src/locale/keymap-util.h
+++ b/src/locale/keymap-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/locale/localectl.c b/src/locale/localectl.c
index 2fef7d8c09..f4afdf6b45 100644
--- a/src/locale/localectl.c
+++ b/src/locale/localectl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/locale/localed.c b/src/locale/localed.c
index 3c0c167dcf..1f52c0a789 100644
--- a/src/locale/localed.c
+++ b/src/locale/localed.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/locale/meson.build b/src/locale/meson.build
index 7f9dd4db0e..dca2c51d2f 100644
--- a/src/locale/meson.build
+++ b/src/locale/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_localed_sources = files('''
         localed.c
         keymap-util.c
diff --git a/src/locale/org.freedesktop.locale1.conf b/src/locale/org.freedesktop.locale1.conf
index 79d0ecd2bb..d74cbc11ab 100644
--- a/src/locale/org.freedesktop.locale1.conf
+++ b/src/locale/org.freedesktop.locale1.conf
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/locale/org.freedesktop.locale1.policy.in b/src/locale/org.freedesktop.locale1.policy.in
index 575a1ffaaf..4c1c34da09 100644
--- a/src/locale/org.freedesktop.locale1.policy.in
+++ b/src/locale/org.freedesktop.locale1.policy.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/locale/org.freedesktop.locale1.service b/src/locale/org.freedesktop.locale1.service
index 025f9a0fc2..b15d39540c 100644
--- a/src/locale/org.freedesktop.locale1.service
+++ b/src/locale/org.freedesktop.locale1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/locale/test-keymap-util.c b/src/locale/test-keymap-util.c
index 2adda3da2b..fa26a0294e 100644
--- a/src/locale/test-keymap-util.c
+++ b/src/locale/test-keymap-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/70-power-switch.rules b/src/login/70-power-switch.rules
index 394a80f1f8..d69e65b3d5 100644
--- a/src/login/70-power-switch.rules
+++ b/src/login/70-power-switch.rules
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/70-uaccess.rules b/src/login/70-uaccess.rules
index e946bf2380..f2c838f353 100644
--- a/src/login/70-uaccess.rules
+++ b/src/login/70-uaccess.rules
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/71-seat.rules.in b/src/login/71-seat.rules.in
index de55c9a4ec..0db46adc84 100644
--- a/src/login/71-seat.rules.in
+++ b/src/login/71-seat.rules.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/73-seat-late.rules.in b/src/login/73-seat-late.rules.in
index 901df750fd..d2546c8ee9 100644
--- a/src/login/73-seat-late.rules.in
+++ b/src/login/73-seat-late.rules.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/inhibit.c b/src/login/inhibit.c
index 7e5a093698..7b9e3f0f6e 100644
--- a/src/login/inhibit.c
+++ b/src/login/inhibit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/loginctl.c b/src/login/loginctl.c
index f2ed0ab02c..f658afa8a2 100644
--- a/src/login/loginctl.c
+++ b/src/login/loginctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-acl.c b/src/login/logind-acl.c
index 1b69f4b9ca..d785f67ca3 100644
--- a/src/login/logind-acl.c
+++ b/src/login/logind-acl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-acl.h b/src/login/logind-acl.h
index 606005a6f1..36690dabd3 100644
--- a/src/login/logind-acl.h
+++ b/src/login/logind-acl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-action.c b/src/login/logind-action.c
index 91225a5363..852ea9f949 100644
--- a/src/login/logind-action.c
+++ b/src/login/logind-action.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-action.h b/src/login/logind-action.h
index fb40ae48d2..8c31ec42be 100644
--- a/src/login/logind-action.h
+++ b/src/login/logind-action.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-button.c b/src/login/logind-button.c
index e53dd63c29..94945f0bcb 100644
--- a/src/login/logind-button.c
+++ b/src/login/logind-button.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-button.h b/src/login/logind-button.h
index f30cba2959..b47eb47571 100644
--- a/src/login/logind-button.h
+++ b/src/login/logind-button.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-core.c b/src/login/logind-core.c
index ba538559f9..adeba746f5 100644
--- a/src/login/logind-core.c
+++ b/src/login/logind-core.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index 016274fb7a..df8cb369fb 100644
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-device.c b/src/login/logind-device.c
index 6537fa04bf..758ba73c2b 100644
--- a/src/login/logind-device.c
+++ b/src/login/logind-device.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-device.h b/src/login/logind-device.h
index 927068e00a..d0911560dd 100644
--- a/src/login/logind-device.h
+++ b/src/login/logind-device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-inhibit.c b/src/login/logind-inhibit.c
index f97e237019..8a6487ea45 100644
--- a/src/login/logind-inhibit.c
+++ b/src/login/logind-inhibit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-inhibit.h b/src/login/logind-inhibit.h
index 70de199c60..cc6c62ab18 100644
--- a/src/login/logind-inhibit.h
+++ b/src/login/logind-inhibit.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-seat-dbus.c b/src/login/logind-seat-dbus.c
index 2154b878dd..8e4e4efc81 100644
--- a/src/login/logind-seat-dbus.c
+++ b/src/login/logind-seat-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-seat.c b/src/login/logind-seat.c
index 133863ea1c..f4aa9a6651 100644
--- a/src/login/logind-seat.c
+++ b/src/login/logind-seat.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-seat.h b/src/login/logind-seat.h
index 9a4fbc5bc5..5427ac21c8 100644
--- a/src/login/logind-seat.h
+++ b/src/login/logind-seat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-session-dbus.c b/src/login/logind-session-dbus.c
index 09ecb49d33..8264a42fd4 100644
--- a/src/login/logind-session-dbus.c
+++ b/src/login/logind-session-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-session-device.c b/src/login/logind-session-device.c
index 05af2045d2..b55ce60be1 100644
--- a/src/login/logind-session-device.c
+++ b/src/login/logind-session-device.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-session-device.h b/src/login/logind-session-device.h
index 83aef1e18c..c263e16750 100644
--- a/src/login/logind-session-device.h
+++ b/src/login/logind-session-device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-session.c b/src/login/logind-session.c
index db4dc45e05..c4bde80c0c 100644
--- a/src/login/logind-session.c
+++ b/src/login/logind-session.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-session.h b/src/login/logind-session.h
index 12b9d86f55..8491832402 100644
--- a/src/login/logind-session.h
+++ b/src/login/logind-session.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-user-dbus.c b/src/login/logind-user-dbus.c
index 921f1e0f91..9fca5ce0cd 100644
--- a/src/login/logind-user-dbus.c
+++ b/src/login/logind-user-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-user.c b/src/login/logind-user.c
index 1103970f1a..43a9f58adc 100644
--- a/src/login/logind-user.c
+++ b/src/login/logind-user.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind-user.h b/src/login/logind-user.h
index 4f0966dc77..ad1686ffc5 100644
--- a/src/login/logind-user.h
+++ b/src/login/logind-user.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/logind-utmp.c b/src/login/logind-utmp.c
index 00c4cbcf4f..ab35d0e326 100644
--- a/src/login/logind-utmp.c
+++ b/src/login/logind-utmp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind.c b/src/login/logind.c
index cdd1710fd3..49ca367e18 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/logind.h b/src/login/logind.h
index 2a8c663a7d..8262367135 100644
--- a/src/login/logind.h
+++ b/src/login/logind.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/meson.build b/src/login/meson.build
index a8f32a2f93..33f9ed48cc 100644
--- a/src/login/meson.build
+++ b/src/login/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_logind_sources = files('''
         logind.c
         logind.h
diff --git a/src/login/org.freedesktop.login1.conf b/src/login/org.freedesktop.login1.conf
index 27aac0dd7c..d842411781 100644
--- a/src/login/org.freedesktop.login1.conf
+++ b/src/login/org.freedesktop.login1.conf
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/org.freedesktop.login1.policy.in b/src/login/org.freedesktop.login1.policy.in
index 17bae02f5e..47162022d2 100644
--- a/src/login/org.freedesktop.login1.policy.in
+++ b/src/login/org.freedesktop.login1.policy.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/org.freedesktop.login1.service b/src/login/org.freedesktop.login1.service
index 762dae2bb3..68f1ed0f48 100644
--- a/src/login/org.freedesktop.login1.service
+++ b/src/login/org.freedesktop.login1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/pam_systemd.c b/src/login/pam_systemd.c
index 730e0f1b5a..246bbddeee 100644
--- a/src/login/pam_systemd.c
+++ b/src/login/pam_systemd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/pam_systemd.sym b/src/login/pam_systemd.sym
index 23ff75f688..d48b9e8ccd 100644
--- a/src/login/pam_systemd.sym
+++ b/src/login/pam_systemd.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/login/sysfs-show.c b/src/login/sysfs-show.c
index bf6feaa0d9..ca8bfa2677 100644
--- a/src/login/sysfs-show.c
+++ b/src/login/sysfs-show.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/sysfs-show.h b/src/login/sysfs-show.h
index e19af4cd92..15c902cc3a 100644
--- a/src/login/sysfs-show.h
+++ b/src/login/sysfs-show.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/login/test-inhibit.c b/src/login/test-inhibit.c
index a3cf9d293b..ad4700f328 100644
--- a/src/login/test-inhibit.c
+++ b/src/login/test-inhibit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/test-login-shared.c b/src/login/test-login-shared.c
index 3d233f017c..bf08b6ee9f 100644
--- a/src/login/test-login-shared.c
+++ b/src/login/test-login-shared.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/login/test-login-tables.c b/src/login/test-login-tables.c
index 4fbc893a9a..7772f4b854 100644
--- a/src/login/test-login-tables.c
+++ b/src/login/test-login-tables.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/machine-id-setup/machine-id-setup-main.c b/src/machine-id-setup/machine-id-setup-main.c
index 2244b1cc76..de6d869d30 100644
--- a/src/machine-id-setup/machine-id-setup-main.c
+++ b/src/machine-id-setup/machine-id-setup-main.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/image-dbus.c b/src/machine/image-dbus.c
index e534470feb..c868d623ba 100644
--- a/src/machine/image-dbus.c
+++ b/src/machine/image-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/image-dbus.h b/src/machine/image-dbus.h
index bc8a6c3400..f270e57a9a 100644
--- a/src/machine/image-dbus.h
+++ b/src/machine/image-dbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/machine/machine-dbus.c b/src/machine/machine-dbus.c
index 28d05c088a..ea1568ea37 100644
--- a/src/machine/machine-dbus.c
+++ b/src/machine/machine-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/machine-dbus.h b/src/machine/machine-dbus.h
index 2aa7b4ce06..f8c931fc38 100644
--- a/src/machine/machine-dbus.h
+++ b/src/machine/machine-dbus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/machine/machine.c b/src/machine/machine.c
index eb96126156..10e379238c 100644
--- a/src/machine/machine.c
+++ b/src/machine/machine.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/machine.h b/src/machine/machine.h
index 6bdb204ed6..1ee82ffe81 100644
--- a/src/machine/machine.h
+++ b/src/machine/machine.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/machine/machinectl.c b/src/machine/machinectl.c
index 968be322dd..0c7d423ddb 100644
--- a/src/machine/machinectl.c
+++ b/src/machine/machinectl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/machined-dbus.c b/src/machine/machined-dbus.c
index c9b92d2765..f537f3a465 100644
--- a/src/machine/machined-dbus.c
+++ b/src/machine/machined-dbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/machined.c b/src/machine/machined.c
index d8ddbec8b9..17142a68af 100644
--- a/src/machine/machined.c
+++ b/src/machine/machined.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/machined.h b/src/machine/machined.h
index 7b9b148044..b00c4c182e 100644
--- a/src/machine/machined.h
+++ b/src/machine/machined.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/machine/meson.build b/src/machine/meson.build
index 12ea9c8f3c..7ea5d9de80 100644
--- a/src/machine/meson.build
+++ b/src/machine/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_machined_sources = files('''
         machined.c
         machined.h
diff --git a/src/machine/operation.c b/src/machine/operation.c
index 9b2d13dde1..6aba1a2af4 100644
--- a/src/machine/operation.c
+++ b/src/machine/operation.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/machine/operation.h b/src/machine/operation.h
index 9831b123d7..361bf1fb44 100644
--- a/src/machine/operation.h
+++ b/src/machine/operation.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/machine/org.freedesktop.machine1.policy.in b/src/machine/org.freedesktop.machine1.policy.in
index b266b564b0..eeeeb4c0f8 100644
--- a/src/machine/org.freedesktop.machine1.policy.in
+++ b/src/machine/org.freedesktop.machine1.policy.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/machine/org.freedesktop.machine1.service b/src/machine/org.freedesktop.machine1.service
index d3dc99852b..d07bcae6eb 100644
--- a/src/machine/org.freedesktop.machine1.service
+++ b/src/machine/org.freedesktop.machine1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/machine/test-machine-tables.c b/src/machine/test-machine-tables.c
index f851a4d37d..fc08785f14 100644
--- a/src/machine/test-machine-tables.c
+++ b/src/machine/test-machine-tables.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/modules-load/modules-load.c b/src/modules-load/modules-load.c
index aaf2927113..c5f57685a2 100644
--- a/src/modules-load/modules-load.c
+++ b/src/modules-load/modules-load.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/mount/mount-tool.c b/src/mount/mount-tool.c
index 7bd40613c3..ce0df21fd6 100644
--- a/src/mount/mount-tool.c
+++ b/src/mount/mount-tool.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/meson.build b/src/network/meson.build
index 38c2220e8b..cc4cbdd996 100644
--- a/src/network/meson.build
+++ b/src/network/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 sources = files('''
         netdev/bond.c
         netdev/bond.h
diff --git a/src/network/netdev/bond.c b/src/network/netdev/bond.c
index 19b0e8da40..f6c9cebda3 100644
--- a/src/network/netdev/bond.c
+++ b/src/network/netdev/bond.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/bond.h b/src/network/netdev/bond.h
index fb88b538ed..31be5b83a3 100644
--- a/src/network/netdev/bond.h
+++ b/src/network/netdev/bond.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/bridge.c b/src/network/netdev/bridge.c
index 17c3955ef5..00d4d30a67 100644
--- a/src/network/netdev/bridge.c
+++ b/src/network/netdev/bridge.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/bridge.h b/src/network/netdev/bridge.h
index b303cfd3f3..7fc993bb8d 100644
--- a/src/network/netdev/bridge.h
+++ b/src/network/netdev/bridge.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/dummy.c b/src/network/netdev/dummy.c
index 5e6e162931..c55009092a 100644
--- a/src/network/netdev/dummy.c
+++ b/src/network/netdev/dummy.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/dummy.h b/src/network/netdev/dummy.h
index a908400459..abfb7c71ef 100644
--- a/src/network/netdev/dummy.h
+++ b/src/network/netdev/dummy.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/geneve.c b/src/network/netdev/geneve.c
index e71ea58a10..1d50963e04 100644
--- a/src/network/netdev/geneve.c
+++ b/src/network/netdev/geneve.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/geneve.h b/src/network/netdev/geneve.h
index bde28bac55..9aec8f505b 100644
--- a/src/network/netdev/geneve.h
+++ b/src/network/netdev/geneve.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/ipvlan.c b/src/network/netdev/ipvlan.c
index 3b5c30fed8..df9487418b 100644
--- a/src/network/netdev/ipvlan.c
+++ b/src/network/netdev/ipvlan.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/netdev/ipvlan.h b/src/network/netdev/ipvlan.h
index 7d7d0184f1..cb43db4348 100644
--- a/src/network/netdev/ipvlan.h
+++ b/src/network/netdev/ipvlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/macvlan.c b/src/network/netdev/macvlan.c
index 93f650def5..9924e16055 100644
--- a/src/network/netdev/macvlan.c
+++ b/src/network/netdev/macvlan.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/netdev/macvlan.h b/src/network/netdev/macvlan.h
index 118d55658c..7d6d346438 100644
--- a/src/network/netdev/macvlan.h
+++ b/src/network/netdev/macvlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/netdev.c b/src/network/netdev/netdev.c
index 2ec526e636..f148bb43c3 100644
--- a/src/network/netdev/netdev.c
+++ b/src/network/netdev/netdev.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/netdev/netdev.h b/src/network/netdev/netdev.h
index a961e2ac3b..4605308ac4 100644
--- a/src/network/netdev/netdev.h
+++ b/src/network/netdev/netdev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/tunnel.c b/src/network/netdev/tunnel.c
index 72b69c3cba..8d6d54d567 100644
--- a/src/network/netdev/tunnel.c
+++ b/src/network/netdev/tunnel.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/tunnel.h b/src/network/netdev/tunnel.h
index 53690d9075..67f8fe35c7 100644
--- a/src/network/netdev/tunnel.h
+++ b/src/network/netdev/tunnel.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/tuntap.c b/src/network/netdev/tuntap.c
index 3d62808842..4597a7feeb 100644
--- a/src/network/netdev/tuntap.c
+++ b/src/network/netdev/tuntap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/tuntap.h b/src/network/netdev/tuntap.h
index 95d3fcf1e9..dbfa3de180 100644
--- a/src/network/netdev/tuntap.h
+++ b/src/network/netdev/tuntap.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/vcan.c b/src/network/netdev/vcan.c
index 7f56702938..780cf91143 100644
--- a/src/network/netdev/vcan.c
+++ b/src/network/netdev/vcan.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/netdev/vcan.h b/src/network/netdev/vcan.h
index 00838b7675..6c4d68e694 100644
--- a/src/network/netdev/vcan.h
+++ b/src/network/netdev/vcan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/veth.c b/src/network/netdev/veth.c
index 350b59bf03..9220b3200f 100644
--- a/src/network/netdev/veth.c
+++ b/src/network/netdev/veth.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/veth.h b/src/network/netdev/veth.h
index b00ce476e8..bb2139ff57 100644
--- a/src/network/netdev/veth.h
+++ b/src/network/netdev/veth.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/vlan.c b/src/network/netdev/vlan.c
index 6f41633ead..3a0100d7e6 100644
--- a/src/network/netdev/vlan.c
+++ b/src/network/netdev/vlan.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/netdev/vlan.h b/src/network/netdev/vlan.h
index 780d61262a..c4688d9b13 100644
--- a/src/network/netdev/vlan.h
+++ b/src/network/netdev/vlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/vrf.c b/src/network/netdev/vrf.c
index a3b271ca23..5e04bbd272 100644
--- a/src/network/netdev/vrf.c
+++ b/src/network/netdev/vrf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/vrf.h b/src/network/netdev/vrf.h
index 06f3c17bc1..58f4ef30a4 100644
--- a/src/network/netdev/vrf.h
+++ b/src/network/netdev/vrf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/netdev/vxlan.c b/src/network/netdev/vxlan.c
index b5b7aec2c0..580e5e6505 100644
--- a/src/network/netdev/vxlan.c
+++ b/src/network/netdev/vxlan.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
     This file is part of systemd.
 
diff --git a/src/network/netdev/vxlan.h b/src/network/netdev/vxlan.h
index 1eeda022a2..3bb8884380 100644
--- a/src/network/netdev/vxlan.h
+++ b/src/network/netdev/vxlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkctl.c b/src/network/networkctl.c
index e4b95e4195..262b715206 100644
--- a/src/network/networkctl.c
+++ b/src/network/networkctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-address-label.c b/src/network/networkd-address-label.c
index b89995ec44..4fd5fa4f58 100644
--- a/src/network/networkd-address-label.c
+++ b/src/network/networkd-address-label.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-address-label.h b/src/network/networkd-address-label.h
index 8724ea8cb5..9ddf707763 100644
--- a/src/network/networkd-address-label.h
+++ b/src/network/networkd-address-label.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-address-pool.c b/src/network/networkd-address-pool.c
index a63b925a4a..22582ab9f1 100644
--- a/src/network/networkd-address-pool.c
+++ b/src/network/networkd-address-pool.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-address-pool.h b/src/network/networkd-address-pool.h
index af30decfe0..1fcff09be9 100644
--- a/src/network/networkd-address-pool.h
+++ b/src/network/networkd-address-pool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-address.c b/src/network/networkd-address.c
index 214192ffe8..1ed6288ec0 100644
--- a/src/network/networkd-address.c
+++ b/src/network/networkd-address.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-address.h b/src/network/networkd-address.h
index 3281c6d3c2..3f5dffac4c 100644
--- a/src/network/networkd-address.h
+++ b/src/network/networkd-address.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-brvlan.c b/src/network/networkd-brvlan.c
index fa5d3ee7fa..1755ba1ac2 100644
--- a/src/network/networkd-brvlan.c
+++ b/src/network/networkd-brvlan.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-brvlan.h b/src/network/networkd-brvlan.h
index b37633f94f..be99436b67 100644
--- a/src/network/networkd-brvlan.h
+++ b/src/network/networkd-brvlan.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-conf.c b/src/network/networkd-conf.c
index 25ec160df8..1f791fcec0 100644
--- a/src/network/networkd-conf.c
+++ b/src/network/networkd-conf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-conf.h b/src/network/networkd-conf.h
index 1136975a5e..8d93cff61c 100644
--- a/src/network/networkd-conf.h
+++ b/src/network/networkd-conf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-dhcp4.c b/src/network/networkd-dhcp4.c
index 0b2f88b706..168dc6ead2 100644
--- a/src/network/networkd-dhcp4.c
+++ b/src/network/networkd-dhcp4.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-dhcp6.c b/src/network/networkd-dhcp6.c
index ee28d7ac39..e5df3d22b1 100644
--- a/src/network/networkd-dhcp6.c
+++ b/src/network/networkd-dhcp6.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-fdb.c b/src/network/networkd-fdb.c
index 3d7f4d2b2d..380581e09a 100644
--- a/src/network/networkd-fdb.c
+++ b/src/network/networkd-fdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-fdb.h b/src/network/networkd-fdb.h
index 2d7d28735c..d34d3e5cbd 100644
--- a/src/network/networkd-fdb.h
+++ b/src/network/networkd-fdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-ipv4ll.c b/src/network/networkd-ipv4ll.c
index d2b10107b8..e3ebbddfee 100644
--- a/src/network/networkd-ipv4ll.c
+++ b/src/network/networkd-ipv4ll.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-ipv6-proxy-ndp.c b/src/network/networkd-ipv6-proxy-ndp.c
index 00790c0c13..526db69d5b 100644
--- a/src/network/networkd-ipv6-proxy-ndp.c
+++ b/src/network/networkd-ipv6-proxy-ndp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-ipv6-proxy-ndp.h b/src/network/networkd-ipv6-proxy-ndp.h
index f09169f40f..ac24c58637 100644
--- a/src/network/networkd-ipv6-proxy-ndp.h
+++ b/src/network/networkd-ipv6-proxy-ndp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-link-bus.c b/src/network/networkd-link-bus.c
index c39c648334..2f4850b1a1 100644
--- a/src/network/networkd-link-bus.c
+++ b/src/network/networkd-link-bus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-link.c b/src/network/networkd-link.c
index 9cd221eb42..c80389dfb2 100644
--- a/src/network/networkd-link.c
+++ b/src/network/networkd-link.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-link.h b/src/network/networkd-link.h
index 6479f4a2e5..bffe865f01 100644
--- a/src/network/networkd-link.h
+++ b/src/network/networkd-link.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-lldp-tx.c b/src/network/networkd-lldp-tx.c
index 2de63ce746..b8d160a1f8 100644
--- a/src/network/networkd-lldp-tx.c
+++ b/src/network/networkd-lldp-tx.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-lldp-tx.h b/src/network/networkd-lldp-tx.h
index 4680c9d950..be7a989226 100644
--- a/src/network/networkd-lldp-tx.h
+++ b/src/network/networkd-lldp-tx.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-manager-bus.c b/src/network/networkd-manager-bus.c
index cbb1b93031..6d57036eb5 100644
--- a/src/network/networkd-manager-bus.c
+++ b/src/network/networkd-manager-bus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-manager.c b/src/network/networkd-manager.c
index 574bd0f5cb..fc9ef74016 100644
--- a/src/network/networkd-manager.c
+++ b/src/network/networkd-manager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-manager.h b/src/network/networkd-manager.h
index 254aab8452..186cb41891 100644
--- a/src/network/networkd-manager.h
+++ b/src/network/networkd-manager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-ndisc.c b/src/network/networkd-ndisc.c
index d52b511bb5..162f2ea0b1 100644
--- a/src/network/networkd-ndisc.c
+++ b/src/network/networkd-ndisc.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-ndisc.h b/src/network/networkd-ndisc.h
index 127126190e..f5eb8cd360 100644
--- a/src/network/networkd-ndisc.h
+++ b/src/network/networkd-ndisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-network-bus.c b/src/network/networkd-network-bus.c
index 3b835b52f9..8d3d7236fc 100644
--- a/src/network/networkd-network-bus.c
+++ b/src/network/networkd-network-bus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-network.c b/src/network/networkd-network.c
index 3ed82ca3f9..679d7ed36c 100644
--- a/src/network/networkd-network.c
+++ b/src/network/networkd-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-network.h b/src/network/networkd-network.h
index 500325fbd0..4265ba634e 100644
--- a/src/network/networkd-network.h
+++ b/src/network/networkd-network.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-radv.c b/src/network/networkd-radv.c
index 5c807b887a..630e1dc476 100644
--- a/src/network/networkd-radv.c
+++ b/src/network/networkd-radv.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-radv.h b/src/network/networkd-radv.h
index d59373df9f..f23029935a 100644
--- a/src/network/networkd-radv.h
+++ b/src/network/networkd-radv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-route.c b/src/network/networkd-route.c
index 163146da60..6139ad3669 100644
--- a/src/network/networkd-route.c
+++ b/src/network/networkd-route.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-route.h b/src/network/networkd-route.h
index 89d32e9214..ff03a39c0f 100644
--- a/src/network/networkd-route.h
+++ b/src/network/networkd-route.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-routing-policy-rule.c b/src/network/networkd-routing-policy-rule.c
index d37f31a4cf..a2e1e15851 100644
--- a/src/network/networkd-routing-policy-rule.c
+++ b/src/network/networkd-routing-policy-rule.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-routing-policy-rule.h b/src/network/networkd-routing-policy-rule.h
index d9fd93b9bf..8a019ba1d2 100644
--- a/src/network/networkd-routing-policy-rule.h
+++ b/src/network/networkd-routing-policy-rule.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd-util.c b/src/network/networkd-util.c
index 8856e76269..b9c533fcc7 100644
--- a/src/network/networkd-util.c
+++ b/src/network/networkd-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/networkd-util.h b/src/network/networkd-util.h
index d5c385bea4..69ea93ad08 100644
--- a/src/network/networkd-util.h
+++ b/src/network/networkd-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/networkd.c b/src/network/networkd.c
index da2fe44bdd..9243384af8 100644
--- a/src/network/networkd.c
+++ b/src/network/networkd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/org.freedesktop.network1.service b/src/network/org.freedesktop.network1.service
index bea885fe53..641a1a5cc1 100644
--- a/src/network/org.freedesktop.network1.service
+++ b/src/network/org.freedesktop.network1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/network/test-network.c b/src/network/test-network.c
index 64d2f23fc1..ff0f272ef6 100644
--- a/src/network/test-network.c
+++ b/src/network/test-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/test-networkd-conf.c b/src/network/test-networkd-conf.c
index 0e1a18457d..530bbf8636 100644
--- a/src/network/test-networkd-conf.c
+++ b/src/network/test-networkd-conf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/wait-online/link.c b/src/network/wait-online/link.c
index bd8578cf93..dfe18bd960 100644
--- a/src/network/wait-online/link.c
+++ b/src/network/wait-online/link.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/wait-online/link.h b/src/network/wait-online/link.h
index c846e60c45..bf8b453c28 100644
--- a/src/network/wait-online/link.h
+++ b/src/network/wait-online/link.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/wait-online/manager.c b/src/network/wait-online/manager.c
index d51b0a59d6..f7a3ec8495 100644
--- a/src/network/wait-online/manager.c
+++ b/src/network/wait-online/manager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/network/wait-online/manager.h b/src/network/wait-online/manager.h
index 052f6b9780..7a8c4ea473 100644
--- a/src/network/wait-online/manager.h
+++ b/src/network/wait-online/manager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/network/wait-online/wait-online.c b/src/network/wait-online/wait-online.c
index 268cbdb629..7b13a5d879 100644
--- a/src/network/wait-online/wait-online.c
+++ b/src/network/wait-online/wait-online.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 
 /***
   This file is part of systemd.
diff --git a/src/notify/notify.c b/src/notify/notify.c
index 70b6f868b9..3e511b7e47 100644
--- a/src/notify/notify.c
+++ b/src/notify/notify.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/meson.build b/src/nspawn/meson.build
index 7f54ebc6db..b1e7134bef 100644
--- a/src/nspawn/meson.build
+++ b/src/nspawn/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_nspawn_sources = files('''
         nspawn-cgroup.c
         nspawn-cgroup.h
diff --git a/src/nspawn/nspawn-cgroup.c b/src/nspawn/nspawn-cgroup.c
index fd565c09cd..1820f33c2c 100644
--- a/src/nspawn/nspawn-cgroup.c
+++ b/src/nspawn/nspawn-cgroup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-cgroup.h b/src/nspawn/nspawn-cgroup.h
index fa4321ab43..e66a854843 100644
--- a/src/nspawn/nspawn-cgroup.h
+++ b/src/nspawn/nspawn-cgroup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-expose-ports.c b/src/nspawn/nspawn-expose-ports.c
index bcaf0aaeaa..98eb85081e 100644
--- a/src/nspawn/nspawn-expose-ports.c
+++ b/src/nspawn/nspawn-expose-ports.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-expose-ports.h b/src/nspawn/nspawn-expose-ports.h
index 741ad9765c..bd88343a02 100644
--- a/src/nspawn/nspawn-expose-ports.h
+++ b/src/nspawn/nspawn-expose-ports.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-mount.c b/src/nspawn/nspawn-mount.c
index 9b7ceb6bdc..c8c941cdfd 100644
--- a/src/nspawn/nspawn-mount.c
+++ b/src/nspawn/nspawn-mount.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-mount.h b/src/nspawn/nspawn-mount.h
index 2777d2169b..79c2390303 100644
--- a/src/nspawn/nspawn-mount.h
+++ b/src/nspawn/nspawn-mount.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-network.c b/src/nspawn/nspawn-network.c
index aa61aaaa79..ef1da333da 100644
--- a/src/nspawn/nspawn-network.c
+++ b/src/nspawn/nspawn-network.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-network.h b/src/nspawn/nspawn-network.h
index 3d8861e1e5..b79e1397b6 100644
--- a/src/nspawn/nspawn-network.h
+++ b/src/nspawn/nspawn-network.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-patch-uid.c b/src/nspawn/nspawn-patch-uid.c
index 7857b453d6..9f2555a3f8 100644
--- a/src/nspawn/nspawn-patch-uid.c
+++ b/src/nspawn/nspawn-patch-uid.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-patch-uid.h b/src/nspawn/nspawn-patch-uid.h
index ff6a7b7647..fc1d22beb3 100644
--- a/src/nspawn/nspawn-patch-uid.h
+++ b/src/nspawn/nspawn-patch-uid.h
@@ -1,5 +1,4 @@
-#pragma once
-
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
@@ -19,6 +18,8 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
+#pragma once
+
 #include <sys/types.h>
 
 int fd_patch_uid(int fd, uid_t shift, uid_t range);
diff --git a/src/nspawn/nspawn-register.c b/src/nspawn/nspawn-register.c
index 5b0faf809c..9d58953515 100644
--- a/src/nspawn/nspawn-register.c
+++ b/src/nspawn/nspawn-register.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-register.h b/src/nspawn/nspawn-register.h
index 6694b3f6b1..76c13bb356 100644
--- a/src/nspawn/nspawn-register.h
+++ b/src/nspawn/nspawn-register.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-seccomp.c b/src/nspawn/nspawn-seccomp.c
index 1890dd8e27..92e5ff9c36 100644
--- a/src/nspawn/nspawn-seccomp.c
+++ b/src/nspawn/nspawn-seccomp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-seccomp.h b/src/nspawn/nspawn-seccomp.h
index 5cf5ad1e14..2421b00a12 100644
--- a/src/nspawn/nspawn-seccomp.h
+++ b/src/nspawn/nspawn-seccomp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-settings.c b/src/nspawn/nspawn-settings.c
index 5f9c1f5ea4..2c9a8f6b44 100644
--- a/src/nspawn/nspawn-settings.c
+++ b/src/nspawn/nspawn-settings.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-settings.h b/src/nspawn/nspawn-settings.h
index 75d68ce4cf..c0c5a153b0 100644
--- a/src/nspawn/nspawn-settings.h
+++ b/src/nspawn/nspawn-settings.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-setuid.c b/src/nspawn/nspawn-setuid.c
index db0710785e..31f5dd3cdd 100644
--- a/src/nspawn/nspawn-setuid.c
+++ b/src/nspawn/nspawn-setuid.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-setuid.h b/src/nspawn/nspawn-setuid.h
index b4968ba1fc..20fc8854f1 100644
--- a/src/nspawn/nspawn-setuid.h
+++ b/src/nspawn/nspawn-setuid.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn-stub-pid1.c b/src/nspawn/nspawn-stub-pid1.c
index 0c48434db8..7f2f8f1f13 100644
--- a/src/nspawn/nspawn-stub-pid1.c
+++ b/src/nspawn/nspawn-stub-pid1.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/nspawn-stub-pid1.h b/src/nspawn/nspawn-stub-pid1.h
index 7ca83078c0..fef2252e22 100644
--- a/src/nspawn/nspawn-stub-pid1.h
+++ b/src/nspawn/nspawn-stub-pid1.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index e946bf80b6..85ba86b62c 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nspawn/test-patch-uid.c b/src/nspawn/test-patch-uid.c
index 11c5321788..cdc438f269 100644
--- a/src/nspawn/test-patch-uid.c
+++ b/src/nspawn/test-patch-uid.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nss-myhostname/nss-myhostname.c b/src/nss-myhostname/nss-myhostname.c
index 96ed161ba7..39714fe3c2 100644
--- a/src/nss-myhostname/nss-myhostname.c
+++ b/src/nss-myhostname/nss-myhostname.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nss-myhostname/nss-myhostname.sym b/src/nss-myhostname/nss-myhostname.sym
index 78646c38b4..0dcdb9bd40 100644
--- a/src/nss-myhostname/nss-myhostname.sym
+++ b/src/nss-myhostname/nss-myhostname.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/nss-mymachines/nss-mymachines.c b/src/nss-mymachines/nss-mymachines.c
index 6e468853a2..ddad109eee 100644
--- a/src/nss-mymachines/nss-mymachines.c
+++ b/src/nss-mymachines/nss-mymachines.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nss-mymachines/nss-mymachines.sym b/src/nss-mymachines/nss-mymachines.sym
index 0728ac3ba7..056d4276f9 100644
--- a/src/nss-mymachines/nss-mymachines.sym
+++ b/src/nss-mymachines/nss-mymachines.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/nss-resolve/nss-resolve.c b/src/nss-resolve/nss-resolve.c
index 17d125c821..cab3c22bb2 100644
--- a/src/nss-resolve/nss-resolve.c
+++ b/src/nss-resolve/nss-resolve.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nss-resolve/nss-resolve.sym b/src/nss-resolve/nss-resolve.sym
index df8dff2a20..27570dfce4 100644
--- a/src/nss-resolve/nss-resolve.sym
+++ b/src/nss-resolve/nss-resolve.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/nss-systemd/nss-systemd.c b/src/nss-systemd/nss-systemd.c
index d856c4c165..d6de0a9878 100644
--- a/src/nss-systemd/nss-systemd.c
+++ b/src/nss-systemd/nss-systemd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/nss-systemd/nss-systemd.sym b/src/nss-systemd/nss-systemd.sym
index 955078788a..e3fe56f684 100644
--- a/src/nss-systemd/nss-systemd.sym
+++ b/src/nss-systemd/nss-systemd.sym
@@ -1,4 +1,6 @@
 /***
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/path/path.c b/src/path/path.c
index 61d877fcf8..0f029c4ae6 100644
--- a/src/path/path.c
+++ b/src/path/path.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/quotacheck/quotacheck.c b/src/quotacheck/quotacheck.c
index 1339564edb..ec5be21a34 100644
--- a/src/quotacheck/quotacheck.c
+++ b/src/quotacheck/quotacheck.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/random-seed/random-seed.c b/src/random-seed/random-seed.c
index 6748bb9dd3..23a6fda08c 100644
--- a/src/random-seed/random-seed.c
+++ b/src/random-seed/random-seed.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/rc-local-generator/rc-local-generator.c b/src/rc-local-generator/rc-local-generator.c
index db3bf5bd21..196947ca51 100644
--- a/src/rc-local-generator/rc-local-generator.c
+++ b/src/rc-local-generator/rc-local-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/remount-fs/remount-fs.c b/src/remount-fs/remount-fs.c
index 0cb9bd9261..2d7cf723f4 100644
--- a/src/remount-fs/remount-fs.c
+++ b/src/remount-fs/remount-fs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/reply-password/reply-password.c b/src/reply-password/reply-password.c
index a17c8a62b8..6f82bf73f0 100644
--- a/src/reply-password/reply-password.c
+++ b/src/reply-password/reply-password.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/dns-type.c b/src/resolve/dns-type.c
index d89ae28dcd..347252a90f 100644
--- a/src/resolve/dns-type.c
+++ b/src/resolve/dns-type.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/dns-type.h b/src/resolve/dns-type.h
index e675fe4ea3..583ceee191 100644
--- a/src/resolve/dns-type.h
+++ b/src/resolve/dns-type.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/meson.build b/src/resolve/meson.build
index 75e654e60d..dbc63f15c2 100644
--- a/src/resolve/meson.build
+++ b/src/resolve/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 basic_dns_sources = files('''
         resolved-dns-dnssec.c
         resolved-dns-dnssec.h
diff --git a/src/resolve/org.freedesktop.resolve1.service b/src/resolve/org.freedesktop.resolve1.service
index 7ac5c323f0..2c25a6129c 100644
--- a/src/resolve/org.freedesktop.resolve1.service
+++ b/src/resolve/org.freedesktop.resolve1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/resolve/resolve-tool.c b/src/resolve/resolve-tool.c
index 708378573f..a963454da0 100644
--- a/src/resolve/resolve-tool.c
+++ b/src/resolve/resolve-tool.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-bus.c b/src/resolve/resolved-bus.c
index c6f14eb416..700a7d5ee0 100644
--- a/src/resolve/resolved-bus.c
+++ b/src/resolve/resolved-bus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-bus.h b/src/resolve/resolved-bus.h
index f49e1337d2..11ddae9d8d 100644
--- a/src/resolve/resolved-bus.h
+++ b/src/resolve/resolved-bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-conf.c b/src/resolve/resolved-conf.c
index 39dc358a48..00135b107c 100644
--- a/src/resolve/resolved-conf.c
+++ b/src/resolve/resolved-conf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-conf.h b/src/resolve/resolved-conf.h
index 8184d6cadf..9b0ffb6483 100644
--- a/src/resolve/resolved-conf.h
+++ b/src/resolve/resolved-conf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-def.h b/src/resolve/resolved-def.h
index c4c1915b18..64c2b1503e 100644
--- a/src/resolve/resolved-def.h
+++ b/src/resolve/resolved-def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-answer.c b/src/resolve/resolved-dns-answer.c
index db86b4dcf6..ecc6143e62 100644
--- a/src/resolve/resolved-dns-answer.c
+++ b/src/resolve/resolved-dns-answer.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-answer.h b/src/resolve/resolved-dns-answer.h
index 11d2e25eeb..af33787044 100644
--- a/src/resolve/resolved-dns-answer.h
+++ b/src/resolve/resolved-dns-answer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-cache.c b/src/resolve/resolved-dns-cache.c
index f8dab01308..942956dd71 100644
--- a/src/resolve/resolved-dns-cache.c
+++ b/src/resolve/resolved-dns-cache.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-cache.h b/src/resolve/resolved-dns-cache.h
index 22a7c17377..a5ace2c4c6 100644
--- a/src/resolve/resolved-dns-cache.h
+++ b/src/resolve/resolved-dns-cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-dnssec.c b/src/resolve/resolved-dns-dnssec.c
index 33bb5a1f95..f04b246a3d 100644
--- a/src/resolve/resolved-dns-dnssec.c
+++ b/src/resolve/resolved-dns-dnssec.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-dnssec.h b/src/resolve/resolved-dns-dnssec.h
index 77bd4d71bf..25e3e08c1b 100644
--- a/src/resolve/resolved-dns-dnssec.h
+++ b/src/resolve/resolved-dns-dnssec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-packet.c b/src/resolve/resolved-dns-packet.c
index 35f4d0689b..40f35475fd 100644
--- a/src/resolve/resolved-dns-packet.c
+++ b/src/resolve/resolved-dns-packet.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-packet.h b/src/resolve/resolved-dns-packet.h
index b873c0f745..15994d24b1 100644
--- a/src/resolve/resolved-dns-packet.h
+++ b/src/resolve/resolved-dns-packet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-query.c b/src/resolve/resolved-dns-query.c
index c2b29bc452..227d0b5d11 100644
--- a/src/resolve/resolved-dns-query.c
+++ b/src/resolve/resolved-dns-query.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-query.h b/src/resolve/resolved-dns-query.h
index b8ea48f6af..c01dc35777 100644
--- a/src/resolve/resolved-dns-query.h
+++ b/src/resolve/resolved-dns-query.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-question.c b/src/resolve/resolved-dns-question.c
index 24f3e8e351..4dc3de4052 100644
--- a/src/resolve/resolved-dns-question.c
+++ b/src/resolve/resolved-dns-question.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-question.h b/src/resolve/resolved-dns-question.h
index a9a1863b1e..666eb92b8d 100644
--- a/src/resolve/resolved-dns-question.h
+++ b/src/resolve/resolved-dns-question.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-rr.c b/src/resolve/resolved-dns-rr.c
index e8c05ed0da..019935b58d 100644
--- a/src/resolve/resolved-dns-rr.c
+++ b/src/resolve/resolved-dns-rr.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-rr.h b/src/resolve/resolved-dns-rr.h
index 42d39a1251..9faf4debe7 100644
--- a/src/resolve/resolved-dns-rr.h
+++ b/src/resolve/resolved-dns-rr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-scope.c b/src/resolve/resolved-dns-scope.c
index ca54158898..4be6040e39 100644
--- a/src/resolve/resolved-dns-scope.c
+++ b/src/resolve/resolved-dns-scope.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-scope.h b/src/resolve/resolved-dns-scope.h
index 6f94b1fdcd..d3da8e54ea 100644
--- a/src/resolve/resolved-dns-scope.h
+++ b/src/resolve/resolved-dns-scope.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-search-domain.c b/src/resolve/resolved-dns-search-domain.c
index 1386e6a17b..585c518e19 100644
--- a/src/resolve/resolved-dns-search-domain.c
+++ b/src/resolve/resolved-dns-search-domain.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-search-domain.h b/src/resolve/resolved-dns-search-domain.h
index eaacef4edc..8442fbd7da 100644
--- a/src/resolve/resolved-dns-search-domain.h
+++ b/src/resolve/resolved-dns-search-domain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-server.c b/src/resolve/resolved-dns-server.c
index 1b61dea626..d470a64524 100644
--- a/src/resolve/resolved-dns-server.c
+++ b/src/resolve/resolved-dns-server.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-server.h b/src/resolve/resolved-dns-server.h
index 00edd47d9a..acc9281b12 100644
--- a/src/resolve/resolved-dns-server.h
+++ b/src/resolve/resolved-dns-server.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-stream.c b/src/resolve/resolved-dns-stream.c
index 5892534687..52f23cd864 100644
--- a/src/resolve/resolved-dns-stream.c
+++ b/src/resolve/resolved-dns-stream.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-stream.h b/src/resolve/resolved-dns-stream.h
index 4cdb4f6806..e099158e1e 100644
--- a/src/resolve/resolved-dns-stream.h
+++ b/src/resolve/resolved-dns-stream.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-stub.c b/src/resolve/resolved-dns-stub.c
index 5bc79a313e..5ce8d240dd 100644
--- a/src/resolve/resolved-dns-stub.c
+++ b/src/resolve/resolved-dns-stub.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-stub.h b/src/resolve/resolved-dns-stub.h
index 12b86f6753..197f2cc758 100644
--- a/src/resolve/resolved-dns-stub.h
+++ b/src/resolve/resolved-dns-stub.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-synthesize.c b/src/resolve/resolved-dns-synthesize.c
index e8592a60d8..d469b91b17 100644
--- a/src/resolve/resolved-dns-synthesize.c
+++ b/src/resolve/resolved-dns-synthesize.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-synthesize.h b/src/resolve/resolved-dns-synthesize.h
index 5d829bb2e7..385863786f 100644
--- a/src/resolve/resolved-dns-synthesize.h
+++ b/src/resolve/resolved-dns-synthesize.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-transaction.c b/src/resolve/resolved-dns-transaction.c
index 3cda429c3c..a66d605405 100644
--- a/src/resolve/resolved-dns-transaction.c
+++ b/src/resolve/resolved-dns-transaction.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-transaction.h b/src/resolve/resolved-dns-transaction.h
index a8d97738ef..4ae93c7813 100644
--- a/src/resolve/resolved-dns-transaction.h
+++ b/src/resolve/resolved-dns-transaction.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-trust-anchor.c b/src/resolve/resolved-dns-trust-anchor.c
index e169c8f02f..f2bd9ef7e4 100644
--- a/src/resolve/resolved-dns-trust-anchor.c
+++ b/src/resolve/resolved-dns-trust-anchor.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-trust-anchor.h b/src/resolve/resolved-dns-trust-anchor.h
index 635c75fde5..94d620e657 100644
--- a/src/resolve/resolved-dns-trust-anchor.h
+++ b/src/resolve/resolved-dns-trust-anchor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-dns-zone.c b/src/resolve/resolved-dns-zone.c
index ad024b54f5..2c32bb4d4f 100644
--- a/src/resolve/resolved-dns-zone.c
+++ b/src/resolve/resolved-dns-zone.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-dns-zone.h b/src/resolve/resolved-dns-zone.h
index 545ec958fb..f654537b45 100644
--- a/src/resolve/resolved-dns-zone.h
+++ b/src/resolve/resolved-dns-zone.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-etc-hosts.c b/src/resolve/resolved-etc-hosts.c
index 0a284825a1..769cfb78e7 100644
--- a/src/resolve/resolved-etc-hosts.c
+++ b/src/resolve/resolved-etc-hosts.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-etc-hosts.h b/src/resolve/resolved-etc-hosts.h
index 9d5a175f18..6756f13b41 100644
--- a/src/resolve/resolved-etc-hosts.h
+++ b/src/resolve/resolved-etc-hosts.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-link-bus.c b/src/resolve/resolved-link-bus.c
index 59cd6cf1cb..711dff0954 100644
--- a/src/resolve/resolved-link-bus.c
+++ b/src/resolve/resolved-link-bus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-link-bus.h b/src/resolve/resolved-link-bus.h
index 646031b631..deed6fe66d 100644
--- a/src/resolve/resolved-link-bus.h
+++ b/src/resolve/resolved-link-bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-link.c b/src/resolve/resolved-link.c
index 3d26831b06..a0128aace0 100644
--- a/src/resolve/resolved-link.c
+++ b/src/resolve/resolved-link.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-link.h b/src/resolve/resolved-link.h
index c20b8b6d29..261e34bfe2 100644
--- a/src/resolve/resolved-link.h
+++ b/src/resolve/resolved-link.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-llmnr.c b/src/resolve/resolved-llmnr.c
index 0cf4583572..d05d669db2 100644
--- a/src/resolve/resolved-llmnr.c
+++ b/src/resolve/resolved-llmnr.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-llmnr.h b/src/resolve/resolved-llmnr.h
index 8133582fa7..7670380c51 100644
--- a/src/resolve/resolved-llmnr.h
+++ b/src/resolve/resolved-llmnr.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-manager.c b/src/resolve/resolved-manager.c
index 23c6731954..4292383d21 100644
--- a/src/resolve/resolved-manager.c
+++ b/src/resolve/resolved-manager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-manager.h b/src/resolve/resolved-manager.h
index 32a0e5fe0f..c9ff788510 100644
--- a/src/resolve/resolved-manager.h
+++ b/src/resolve/resolved-manager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-mdns.c b/src/resolve/resolved-mdns.c
index 6fbf755878..37cc1e9704 100644
--- a/src/resolve/resolved-mdns.c
+++ b/src/resolve/resolved-mdns.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-mdns.h b/src/resolve/resolved-mdns.h
index 06bd3296be..af9f7a9aa6 100644
--- a/src/resolve/resolved-mdns.h
+++ b/src/resolve/resolved-mdns.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved-resolv-conf.c b/src/resolve/resolved-resolv-conf.c
index 08058b3ad4..b182f4319e 100644
--- a/src/resolve/resolved-resolv-conf.c
+++ b/src/resolve/resolved-resolv-conf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/resolved-resolv-conf.h b/src/resolve/resolved-resolv-conf.h
index 6dc1afe764..99b3ca88fb 100644
--- a/src/resolve/resolved-resolv-conf.h
+++ b/src/resolve/resolved-resolv-conf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/resolve/resolved.c b/src/resolve/resolved.c
index 9ff877498c..a4cda0b5ef 100644
--- a/src/resolve/resolved.c
+++ b/src/resolve/resolved.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/test-dns-packet.c b/src/resolve/test-dns-packet.c
index 00dde9b6bd..458c908fad 100644
--- a/src/resolve/test-dns-packet.c
+++ b/src/resolve/test-dns-packet.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/resolve/test-dnssec-complex.c b/src/resolve/test-dnssec-complex.c
index 25ec6f4352..e7b077939f 100644
--- a/src/resolve/test-dnssec-complex.c
+++ b/src/resolve/test-dnssec-complex.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/test-dnssec.c b/src/resolve/test-dnssec.c
index 8cb4b50393..aea7fff1d6 100644
--- a/src/resolve/test-dnssec.c
+++ b/src/resolve/test-dnssec.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/resolve/test-resolve-tables.c b/src/resolve/test-resolve-tables.c
index 2d615130e1..808ec76a41 100644
--- a/src/resolve/test-resolve-tables.c
+++ b/src/resolve/test-resolve-tables.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/resolve/test-resolved-packet.c b/src/resolve/test-resolved-packet.c
index ab11fbcd32..af5bec1391 100644
--- a/src/resolve/test-resolved-packet.c
+++ b/src/resolve/test-resolved-packet.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/rfkill/rfkill.c b/src/rfkill/rfkill.c
index c14b5ea3ee..ff951450b5 100644
--- a/src/rfkill/rfkill.c
+++ b/src/rfkill/rfkill.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/run/run.c b/src/run/run.c
index 578b59e163..f888fd96b1 100644
--- a/src/run/run.c
+++ b/src/run/run.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/acl-util.c b/src/shared/acl-util.c
index 79a3b9591d..b24ed77985 100644
--- a/src/shared/acl-util.c
+++ b/src/shared/acl-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/acl-util.h b/src/shared/acl-util.h
index a0e31d8e29..6b581cbc42 100644
--- a/src/shared/acl-util.h
+++ b/src/shared/acl-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/acpi-fpdt.c b/src/shared/acpi-fpdt.c
index 6779691c28..1a640f4f1b 100644
--- a/src/shared/acpi-fpdt.c
+++ b/src/shared/acpi-fpdt.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/acpi-fpdt.h b/src/shared/acpi-fpdt.h
index fc28175d0a..4521a1e686 100644
--- a/src/shared/acpi-fpdt.h
+++ b/src/shared/acpi-fpdt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/apparmor-util.c b/src/shared/apparmor-util.c
index edd695fd23..e9c4081892 100644
--- a/src/shared/apparmor-util.c
+++ b/src/shared/apparmor-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/apparmor-util.h b/src/shared/apparmor-util.h
index 524f740152..33ebd4d612 100644
--- a/src/shared/apparmor-util.h
+++ b/src/shared/apparmor-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/ask-password-api.c b/src/shared/ask-password-api.c
index e33d8b11cf..a0c76eddbe 100644
--- a/src/shared/ask-password-api.c
+++ b/src/shared/ask-password-api.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/ask-password-api.h b/src/shared/ask-password-api.h
index 9d7f65130c..f3ca6743a9 100644
--- a/src/shared/ask-password-api.h
+++ b/src/shared/ask-password-api.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/base-filesystem.c b/src/shared/base-filesystem.c
index 903a187861..3c25aa534c 100644
--- a/src/shared/base-filesystem.c
+++ b/src/shared/base-filesystem.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/base-filesystem.h b/src/shared/base-filesystem.h
index 49599f0a60..5d134b4eb9 100644
--- a/src/shared/base-filesystem.h
+++ b/src/shared/base-filesystem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/boot-timestamps.c b/src/shared/boot-timestamps.c
index 7e0152761c..543e01a364 100644
--- a/src/shared/boot-timestamps.c
+++ b/src/shared/boot-timestamps.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/boot-timestamps.h b/src/shared/boot-timestamps.h
index 6f691026be..8c67d302b4 100644
--- a/src/shared/boot-timestamps.h
+++ b/src/shared/boot-timestamps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/bus-unit-util.c b/src/shared/bus-unit-util.c
index 2b2480c2e1..87e2e597e2 100644
--- a/src/shared/bus-unit-util.c
+++ b/src/shared/bus-unit-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/bus-unit-util.h b/src/shared/bus-unit-util.h
index d102ea180e..1a137e8b84 100644
--- a/src/shared/bus-unit-util.h
+++ b/src/shared/bus-unit-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/bus-util.c b/src/shared/bus-util.c
index 7609d9c522..c6844f5ec2 100644
--- a/src/shared/bus-util.c
+++ b/src/shared/bus-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/bus-util.h b/src/shared/bus-util.h
index d9ce4263bb..a9f4969d7d 100644
--- a/src/shared/bus-util.h
+++ b/src/shared/bus-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/cgroup-show.c b/src/shared/cgroup-show.c
index 436130edea..0ddae95434 100644
--- a/src/shared/cgroup-show.c
+++ b/src/shared/cgroup-show.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/cgroup-show.h b/src/shared/cgroup-show.h
index 1764f76744..efa597aad0 100644
--- a/src/shared/cgroup-show.h
+++ b/src/shared/cgroup-show.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/clean-ipc.c b/src/shared/clean-ipc.c
index 64f81bb5d3..7e2ef4a8eb 100644
--- a/src/shared/clean-ipc.c
+++ b/src/shared/clean-ipc.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/clean-ipc.h b/src/shared/clean-ipc.h
index c04ed3596b..0ade561b3f 100644
--- a/src/shared/clean-ipc.h
+++ b/src/shared/clean-ipc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/condition.c b/src/shared/condition.c
index a25c825a09..11555b474c 100644
--- a/src/shared/condition.c
+++ b/src/shared/condition.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/condition.h b/src/shared/condition.h
index d0b592bc43..534906b6d6 100644
--- a/src/shared/condition.h
+++ b/src/shared/condition.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/conf-parser.c b/src/shared/conf-parser.c
index 9ca9750750..daddb7cf20 100644
--- a/src/shared/conf-parser.c
+++ b/src/shared/conf-parser.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/conf-parser.h b/src/shared/conf-parser.h
index a270488c23..2fd135baa0 100644
--- a/src/shared/conf-parser.h
+++ b/src/shared/conf-parser.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/dev-setup.c b/src/shared/dev-setup.c
index b2d464c117..6d2cc685fa 100644
--- a/src/shared/dev-setup.c
+++ b/src/shared/dev-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/dev-setup.h b/src/shared/dev-setup.h
index 5766a62060..4dd591de0a 100644
--- a/src/shared/dev-setup.h
+++ b/src/shared/dev-setup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/dissect-image.c b/src/shared/dissect-image.c
index dbd9eae592..5bb0d3a478 100644
--- a/src/shared/dissect-image.c
+++ b/src/shared/dissect-image.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/dissect-image.h b/src/shared/dissect-image.h
index cdb083be6f..20afbb5bf6 100644
--- a/src/shared/dissect-image.h
+++ b/src/shared/dissect-image.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/dns-domain.c b/src/shared/dns-domain.c
index 4739cc880b..670aa48800 100644
--- a/src/shared/dns-domain.c
+++ b/src/shared/dns-domain.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/dns-domain.h b/src/shared/dns-domain.h
index a44d9d48d4..af74b97484 100644
--- a/src/shared/dns-domain.h
+++ b/src/shared/dns-domain.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/dropin.c b/src/shared/dropin.c
index 059b50dbd0..a16f436bed 100644
--- a/src/shared/dropin.c
+++ b/src/shared/dropin.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/dropin.h b/src/shared/dropin.h
index a2b8cdce61..102fc9403c 100644
--- a/src/shared/dropin.h
+++ b/src/shared/dropin.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/efivars.c b/src/shared/efivars.c
index a3850bede2..845ab0fa58 100644
--- a/src/shared/efivars.c
+++ b/src/shared/efivars.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/efivars.h b/src/shared/efivars.h
index 72bace0d07..9a4880de7d 100644
--- a/src/shared/efivars.h
+++ b/src/shared/efivars.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/fdset.c b/src/shared/fdset.c
index 090f3fdcdd..9ce1295223 100644
--- a/src/shared/fdset.c
+++ b/src/shared/fdset.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/fdset.h b/src/shared/fdset.h
index 16efe5bdf2..864ab676f7 100644
--- a/src/shared/fdset.h
+++ b/src/shared/fdset.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/firewall-util.c b/src/shared/firewall-util.c
index 6d295ea65b..1c595ce251 100644
--- a/src/shared/firewall-util.c
+++ b/src/shared/firewall-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/firewall-util.h b/src/shared/firewall-util.h
index 5915266b4b..fd7e3b456e 100644
--- a/src/shared/firewall-util.h
+++ b/src/shared/firewall-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/fstab-util.c b/src/shared/fstab-util.c
index ec2e868ca8..bcd7b43084 100644
--- a/src/shared/fstab-util.c
+++ b/src/shared/fstab-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/fstab-util.h b/src/shared/fstab-util.h
index bbf0441351..87f82dcfb4 100644
--- a/src/shared/fstab-util.h
+++ b/src/shared/fstab-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/gcrypt-util.c b/src/shared/gcrypt-util.c
index e10a38dcfc..1bfb776725 100644
--- a/src/shared/gcrypt-util.c
+++ b/src/shared/gcrypt-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
 /***
diff --git a/src/shared/gcrypt-util.h b/src/shared/gcrypt-util.h
index f08ed6052c..69faf08e56 100644
--- a/src/shared/gcrypt-util.h
+++ b/src/shared/gcrypt-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
 
 /***
diff --git a/src/shared/generator.c b/src/shared/generator.c
index 18fc469098..a9670213d4 100644
--- a/src/shared/generator.c
+++ b/src/shared/generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/generator.h b/src/shared/generator.h
index e70016839f..39dd520f9f 100644
--- a/src/shared/generator.h
+++ b/src/shared/generator.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/gpt.h b/src/shared/gpt.h
index cc752006fa..7589f6fb7a 100644
--- a/src/shared/gpt.h
+++ b/src/shared/gpt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/ima-util.c b/src/shared/ima-util.c
index 789064d653..064f38be6f 100644
--- a/src/shared/ima-util.c
+++ b/src/shared/ima-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/ima-util.h b/src/shared/ima-util.h
index 5be94761fd..5633c78be9 100644
--- a/src/shared/ima-util.h
+++ b/src/shared/ima-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/import-util.c b/src/shared/import-util.c
index ab701ad8b2..07ba216e93 100644
--- a/src/shared/import-util.c
+++ b/src/shared/import-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/import-util.h b/src/shared/import-util.h
index 77b17d91f3..583845b1a4 100644
--- a/src/shared/import-util.h
+++ b/src/shared/import-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/install-printf.c b/src/shared/install-printf.c
index c10ed3d311..596f7e46b6 100644
--- a/src/shared/install-printf.c
+++ b/src/shared/install-printf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/install-printf.h b/src/shared/install-printf.h
index 8a570fc265..d868f65cfa 100644
--- a/src/shared/install-printf.h
+++ b/src/shared/install-printf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/install.c b/src/shared/install.c
index 99761f99da..a75a045d43 100644
--- a/src/shared/install.c
+++ b/src/shared/install.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/install.h b/src/shared/install.h
index c1fcbe96ed..6d7518d72a 100644
--- a/src/shared/install.h
+++ b/src/shared/install.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/journal-util.c b/src/shared/journal-util.c
index 82f193ffd8..eb7a75295f 100644
--- a/src/shared/journal-util.c
+++ b/src/shared/journal-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/journal-util.h b/src/shared/journal-util.h
index 95613bba10..ef5e314d37 100644
--- a/src/shared/journal-util.h
+++ b/src/shared/journal-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/linux/auto_dev-ioctl.h b/src/shared/linux/auto_dev-ioctl.h
index aeaeb3ea7a..b3555fb2c8 100644
--- a/src/shared/linux/auto_dev-ioctl.h
+++ b/src/shared/linux/auto_dev-ioctl.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright 2008 Red Hat, Inc. All rights reserved.
  * Copyright 2008 Ian Kent <raven@themaw.net>
diff --git a/src/shared/logs-show.c b/src/shared/logs-show.c
index 5e0d59f5a2..420c4d3e37 100644
--- a/src/shared/logs-show.c
+++ b/src/shared/logs-show.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/logs-show.h b/src/shared/logs-show.h
index 3d583b79ef..eaa69b6e90 100644
--- a/src/shared/logs-show.h
+++ b/src/shared/logs-show.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/loop-util.c b/src/shared/loop-util.c
index 047e213634..31c5789a2e 100644
--- a/src/shared/loop-util.c
+++ b/src/shared/loop-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/loop-util.h b/src/shared/loop-util.h
index 45fead5f18..7e18e5779d 100644
--- a/src/shared/loop-util.h
+++ b/src/shared/loop-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/machine-image.c b/src/shared/machine-image.c
index 24209fa35d..a9e5d608a5 100644
--- a/src/shared/machine-image.c
+++ b/src/shared/machine-image.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/machine-image.h b/src/shared/machine-image.h
index 50d89e4392..1b1194e442 100644
--- a/src/shared/machine-image.h
+++ b/src/shared/machine-image.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/machine-pool.c b/src/shared/machine-pool.c
index c581bdeb79..167bcfad36 100644
--- a/src/shared/machine-pool.c
+++ b/src/shared/machine-pool.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/machine-pool.h b/src/shared/machine-pool.h
index 40fe5ecb3a..6e390521e8 100644
--- a/src/shared/machine-pool.h
+++ b/src/shared/machine-pool.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/meson.build b/src/shared/meson.build
index 9e3e462854..2e2a2154f1 100644
--- a/src/shared/meson.build
+++ b/src/shared/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 shared_sources = '''
         acl-util.h
         acpi-fpdt.c
diff --git a/src/shared/nsflags.c b/src/shared/nsflags.c
index aeb79b131e..05ec9feb8d 100644
--- a/src/shared/nsflags.c
+++ b/src/shared/nsflags.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/nsflags.h b/src/shared/nsflags.h
index 152ab8b936..dcac6cd0b2 100644
--- a/src/shared/nsflags.h
+++ b/src/shared/nsflags.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/output-mode.c b/src/shared/output-mode.c
index 29dcba9f6b..5256e917a3 100644
--- a/src/shared/output-mode.c
+++ b/src/shared/output-mode.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/output-mode.h b/src/shared/output-mode.h
index 2a1bfd98d0..747f7eb1b9 100644
--- a/src/shared/output-mode.h
+++ b/src/shared/output-mode.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/pager.c b/src/shared/pager.c
index da49f9a22d..39997278f1 100644
--- a/src/shared/pager.c
+++ b/src/shared/pager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/pager.h b/src/shared/pager.h
index 893e1d2bb6..99716f8747 100644
--- a/src/shared/pager.h
+++ b/src/shared/pager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/path-lookup.c b/src/shared/path-lookup.c
index 26dbb482ef..b40887bfbd 100644
--- a/src/shared/path-lookup.c
+++ b/src/shared/path-lookup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/path-lookup.h b/src/shared/path-lookup.h
index fc8b8ed8c7..8ea263e473 100644
--- a/src/shared/path-lookup.h
+++ b/src/shared/path-lookup.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/ptyfwd.c b/src/shared/ptyfwd.c
index 0c92184ba5..487a013148 100644
--- a/src/shared/ptyfwd.c
+++ b/src/shared/ptyfwd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/ptyfwd.h b/src/shared/ptyfwd.h
index 3fad1d3b26..ee04fca2c0 100644
--- a/src/shared/ptyfwd.h
+++ b/src/shared/ptyfwd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/resolve-util.c b/src/shared/resolve-util.c
index e2da81bab7..edcb8e05e7 100644
--- a/src/shared/resolve-util.c
+++ b/src/shared/resolve-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/resolve-util.h b/src/shared/resolve-util.h
index 8636a6c134..975156ca96 100644
--- a/src/shared/resolve-util.h
+++ b/src/shared/resolve-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/seccomp-util.c b/src/shared/seccomp-util.c
index 8b6184a778..62742858c7 100644
--- a/src/shared/seccomp-util.c
+++ b/src/shared/seccomp-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/seccomp-util.h b/src/shared/seccomp-util.h
index a3c360cdb3..ad2ab7f6b5 100644
--- a/src/shared/seccomp-util.h
+++ b/src/shared/seccomp-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/sleep-config.c b/src/shared/sleep-config.c
index b4c3037f0c..ecac98e0ab 100644
--- a/src/shared/sleep-config.c
+++ b/src/shared/sleep-config.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/sleep-config.h b/src/shared/sleep-config.h
index ad10039ff4..fc5a81d954 100644
--- a/src/shared/sleep-config.h
+++ b/src/shared/sleep-config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/spawn-ask-password-agent.c b/src/shared/spawn-ask-password-agent.c
index a46b7525f0..9af5faa3dd 100644
--- a/src/shared/spawn-ask-password-agent.c
+++ b/src/shared/spawn-ask-password-agent.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/spawn-ask-password-agent.h b/src/shared/spawn-ask-password-agent.h
index fb0749b13f..158f8839ab 100644
--- a/src/shared/spawn-ask-password-agent.h
+++ b/src/shared/spawn-ask-password-agent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/spawn-polkit-agent.c b/src/shared/spawn-polkit-agent.c
index 9a40147662..423069fb0e 100644
--- a/src/shared/spawn-polkit-agent.c
+++ b/src/shared/spawn-polkit-agent.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/spawn-polkit-agent.h b/src/shared/spawn-polkit-agent.h
index 9bf93b9922..9f26fa10a7 100644
--- a/src/shared/spawn-polkit-agent.h
+++ b/src/shared/spawn-polkit-agent.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/specifier.c b/src/shared/specifier.c
index 81379041cc..b0f00dbb5a 100644
--- a/src/shared/specifier.c
+++ b/src/shared/specifier.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/specifier.h b/src/shared/specifier.h
index 6b1623ee61..5d2b859f64 100644
--- a/src/shared/specifier.h
+++ b/src/shared/specifier.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/switch-root.c b/src/shared/switch-root.c
index afdf1ab5ad..3c51fa36f3 100644
--- a/src/shared/switch-root.c
+++ b/src/shared/switch-root.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/switch-root.h b/src/shared/switch-root.h
index a7a080b3e8..abcdc1c65f 100644
--- a/src/shared/switch-root.h
+++ b/src/shared/switch-root.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 #include <stdbool.h>
diff --git a/src/shared/sysctl-util.c b/src/shared/sysctl-util.c
index e1ccb3294c..391065d804 100644
--- a/src/shared/sysctl-util.c
+++ b/src/shared/sysctl-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/sysctl-util.h b/src/shared/sysctl-util.h
index 2decb39f58..446aa6f384 100644
--- a/src/shared/sysctl-util.h
+++ b/src/shared/sysctl-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/test-tables.h b/src/shared/test-tables.h
index 228e510104..6b223b1ee5 100644
--- a/src/shared/test-tables.h
+++ b/src/shared/test-tables.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/shared/tests.c b/src/shared/tests.c
index f300bbc66f..d78ab7b069 100644
--- a/src/shared/tests.c
+++ b/src/shared/tests.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/tests.h b/src/shared/tests.h
index 7055124990..b070f386e3 100644
--- a/src/shared/tests.h
+++ b/src/shared/tests.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/tomoyo-util.c b/src/shared/tomoyo-util.c
index f5b07888a4..390fff6152 100644
--- a/src/shared/tomoyo-util.c
+++ b/src/shared/tomoyo-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/tomoyo-util.h b/src/shared/tomoyo-util.h
index 746e97c256..4fb309fd54 100644
--- a/src/shared/tomoyo-util.h
+++ b/src/shared/tomoyo-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/udev-util.c b/src/shared/udev-util.c
index f708dcfa14..65a09e9c2e 100644
--- a/src/shared/udev-util.c
+++ b/src/shared/udev-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/udev-util.h b/src/shared/udev-util.h
index a415be249e..c5e4197dff 100644
--- a/src/shared/udev-util.h
+++ b/src/shared/udev-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/uid-range.c b/src/shared/uid-range.c
index b6ec474390..c38b7cc984 100644
--- a/src/shared/uid-range.c
+++ b/src/shared/uid-range.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/uid-range.h b/src/shared/uid-range.h
index 4044eb4c9c..882f6624cd 100644
--- a/src/shared/uid-range.h
+++ b/src/shared/uid-range.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/utmp-wtmp.c b/src/shared/utmp-wtmp.c
index fc8548c5b3..40910876c9 100644
--- a/src/shared/utmp-wtmp.c
+++ b/src/shared/utmp-wtmp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/utmp-wtmp.h b/src/shared/utmp-wtmp.h
index 8f4fbcdeff..2c75d4097e 100644
--- a/src/shared/utmp-wtmp.h
+++ b/src/shared/utmp-wtmp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/vlan-util.c b/src/shared/vlan-util.c
index 1edd96fbe7..fa270164bb 100644
--- a/src/shared/vlan-util.c
+++ b/src/shared/vlan-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/vlan-util.h b/src/shared/vlan-util.h
index 365ed14d88..6d287fd32a 100644
--- a/src/shared/vlan-util.h
+++ b/src/shared/vlan-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/volatile-util.c b/src/shared/volatile-util.c
index e7e9721411..85512d00af 100644
--- a/src/shared/volatile-util.c
+++ b/src/shared/volatile-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/volatile-util.h b/src/shared/volatile-util.h
index 17930ba6ae..3ad037af8b 100644
--- a/src/shared/volatile-util.h
+++ b/src/shared/volatile-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/shared/watchdog.c b/src/shared/watchdog.c
index 4f3e0125f3..a6a356dbd0 100644
--- a/src/shared/watchdog.c
+++ b/src/shared/watchdog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/shared/watchdog.h b/src/shared/watchdog.h
index f6ec178ea1..8c17e7e1dc 100644
--- a/src/shared/watchdog.h
+++ b/src/shared/watchdog.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/sleep/sleep.c b/src/sleep/sleep.c
index 4d774c90b3..518032ec69 100644
--- a/src/sleep/sleep.c
+++ b/src/sleep/sleep.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/socket-proxy/socket-proxyd.c b/src/socket-proxy/socket-proxyd.c
index 34c938438c..8887e2f989 100644
--- a/src/socket-proxy/socket-proxyd.c
+++ b/src/socket-proxy/socket-proxyd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/stdio-bridge/stdio-bridge.c b/src/stdio-bridge/stdio-bridge.c
index 097f8c1a4b..e8b977e9e4 100644
--- a/src/stdio-bridge/stdio-bridge.c
+++ b/src/stdio-bridge/stdio-bridge.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/sulogin-shell/meson.build b/src/sulogin-shell/meson.build
index 90e6f3e716..1617258b79 100644
--- a/src/sulogin-shell/meson.build
+++ b/src/sulogin-shell/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 executable('systemd-sulogin-shell',
            ['sulogin-shell.c'],
            include_directories : includes,
diff --git a/src/sulogin-shell/sulogin-shell.c b/src/sulogin-shell/sulogin-shell.c
index 7933ddcc21..b21d61d317 100644
--- a/src/sulogin-shell/sulogin-shell.c
+++ b/src/sulogin-shell/sulogin-shell.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/sysctl/sysctl.c b/src/sysctl/sysctl.c
index ce4ff8c8a3..4c468d011a 100644
--- a/src/sysctl/sysctl.c
+++ b/src/sysctl/sysctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/system-update-generator/system-update-generator.c b/src/system-update-generator/system-update-generator.c
index f1514c9638..1796bae340 100644
--- a/src/system-update-generator/system-update-generator.c
+++ b/src/system-update-generator/system-update-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 9d9b45f08a..930fd3ac77 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/systemd/_sd-common.h b/src/systemd/_sd-common.h
index 97c3943861..b4400e7b36 100644
--- a/src/systemd/_sd-common.h
+++ b/src/systemd/_sd-common.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdcommonhfoo
 #define foosdcommonhfoo
 
diff --git a/src/systemd/meson.build b/src/systemd/meson.build
index debbd46dff..16e4b3540c 100644
--- a/src/systemd/meson.build
+++ b/src/systemd/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 _systemd_headers = '''
         sd-bus.h
         sd-bus-protocol.h
diff --git a/src/systemd/sd-bus-protocol.h b/src/systemd/sd-bus-protocol.h
index 623cee0c50..63e3702fbf 100644
--- a/src/systemd/sd-bus-protocol.h
+++ b/src/systemd/sd-bus-protocol.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdbusprotocolhfoo
 #define foosdbusprotocolhfoo
 
diff --git a/src/systemd/sd-bus-vtable.h b/src/systemd/sd-bus-vtable.h
index 1e82cae038..f6fb40fbb5 100644
--- a/src/systemd/sd-bus-vtable.h
+++ b/src/systemd/sd-bus-vtable.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdbusvtablehfoo
 #define foosdbusvtablehfoo
 
diff --git a/src/systemd/sd-bus.h b/src/systemd/sd-bus.h
index ae299a3dae..c5c7096d55 100644
--- a/src/systemd/sd-bus.h
+++ b/src/systemd/sd-bus.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdbushfoo
 #define foosdbushfoo
 
diff --git a/src/systemd/sd-daemon.h b/src/systemd/sd-daemon.h
index 8c096f610f..61cfdd8e0a 100644
--- a/src/systemd/sd-daemon.h
+++ b/src/systemd/sd-daemon.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddaemonhfoo
 #define foosddaemonhfoo
 
diff --git a/src/systemd/sd-device.h b/src/systemd/sd-device.h
index c1d07561d7..6ac0b13c0c 100644
--- a/src/systemd/sd-device.h
+++ b/src/systemd/sd-device.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddevicehfoo
 #define foosddevicehfoo
 
diff --git a/src/systemd/sd-dhcp-client.h b/src/systemd/sd-dhcp-client.h
index 5e46d8d0e8..6eb9eb61a8 100644
--- a/src/systemd/sd-dhcp-client.h
+++ b/src/systemd/sd-dhcp-client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddhcpclienthfoo
 #define foosddhcpclienthfoo
 
diff --git a/src/systemd/sd-dhcp-lease.h b/src/systemd/sd-dhcp-lease.h
index 7ab99cccd1..3cc7fcabe3 100644
--- a/src/systemd/sd-dhcp-lease.h
+++ b/src/systemd/sd-dhcp-lease.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddhcpleasehfoo
 #define foosddhcpleasehfoo
 
diff --git a/src/systemd/sd-dhcp-server.h b/src/systemd/sd-dhcp-server.h
index d4517a26d6..9d39e43b98 100644
--- a/src/systemd/sd-dhcp-server.h
+++ b/src/systemd/sd-dhcp-server.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddhcpserverhfoo
 #define foosddhcpserverhfoo
 
diff --git a/src/systemd/sd-dhcp6-client.h b/src/systemd/sd-dhcp6-client.h
index 0749c05c51..37803c71d8 100644
--- a/src/systemd/sd-dhcp6-client.h
+++ b/src/systemd/sd-dhcp6-client.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddhcp6clienthfoo
 #define foosddhcp6clienthfoo
 
diff --git a/src/systemd/sd-dhcp6-lease.h b/src/systemd/sd-dhcp6-lease.h
index 184fbb8e0d..5807b1836b 100644
--- a/src/systemd/sd-dhcp6-lease.h
+++ b/src/systemd/sd-dhcp6-lease.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosddhcp6leasehfoo
 #define foosddhcp6leasehfoo
 
diff --git a/src/systemd/sd-event.h b/src/systemd/sd-event.h
index f8cb895660..9083d5fa9e 100644
--- a/src/systemd/sd-event.h
+++ b/src/systemd/sd-event.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdeventhfoo
 #define foosdeventhfoo
 
diff --git a/src/systemd/sd-hwdb.h b/src/systemd/sd-hwdb.h
index 7105920492..fd69aaf3d4 100644
--- a/src/systemd/sd-hwdb.h
+++ b/src/systemd/sd-hwdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdhwdbhfoo
 #define foosdhwdbhfoo
 
diff --git a/src/systemd/sd-id128.h b/src/systemd/sd-id128.h
index 9b38969b77..67fc595669 100644
--- a/src/systemd/sd-id128.h
+++ b/src/systemd/sd-id128.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdid128hfoo
 #define foosdid128hfoo
 
diff --git a/src/systemd/sd-ipv4acd.h b/src/systemd/sd-ipv4acd.h
index 16d99983a8..677ae3b216 100644
--- a/src/systemd/sd-ipv4acd.h
+++ b/src/systemd/sd-ipv4acd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdipv4acdfoo
 #define foosdipv4acdfoo
 
diff --git a/src/systemd/sd-ipv4ll.h b/src/systemd/sd-ipv4ll.h
index 5ba92083f4..c330b0ae9e 100644
--- a/src/systemd/sd-ipv4ll.h
+++ b/src/systemd/sd-ipv4ll.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdipv4llfoo
 #define foosdipv4llfoo
 
diff --git a/src/systemd/sd-journal.h b/src/systemd/sd-journal.h
index 9c36b27157..2a70d5e818 100644
--- a/src/systemd/sd-journal.h
+++ b/src/systemd/sd-journal.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdjournalhfoo
 #define foosdjournalhfoo
 
diff --git a/src/systemd/sd-lldp.h b/src/systemd/sd-lldp.h
index 3f35eebea3..0a76fa6314 100644
--- a/src/systemd/sd-lldp.h
+++ b/src/systemd/sd-lldp.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdlldphfoo
 #define foosdlldphfoo
 
diff --git a/src/systemd/sd-login.h b/src/systemd/sd-login.h
index e3ecbd8378..d8e2c6822d 100644
--- a/src/systemd/sd-login.h
+++ b/src/systemd/sd-login.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdloginhfoo
 #define foosdloginhfoo
 
diff --git a/src/systemd/sd-messages.h b/src/systemd/sd-messages.h
index 8c23486779..874329ff8c 100644
--- a/src/systemd/sd-messages.h
+++ b/src/systemd/sd-messages.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdmessageshfoo
 #define foosdmessageshfoo
 
diff --git a/src/systemd/sd-ndisc.h b/src/systemd/sd-ndisc.h
index 9f7d4ef71a..152114507a 100644
--- a/src/systemd/sd-ndisc.h
+++ b/src/systemd/sd-ndisc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdndiscfoo
 #define foosdndiscfoo
 
diff --git a/src/systemd/sd-netlink.h b/src/systemd/sd-netlink.h
index b28fc0da00..d6e3816c64 100644
--- a/src/systemd/sd-netlink.h
+++ b/src/systemd/sd-netlink.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdnetlinkhfoo
 #define foosdnetlinkhfoo
 
diff --git a/src/systemd/sd-network.h b/src/systemd/sd-network.h
index 0f13e2bae7..7f5a6bd3fa 100644
--- a/src/systemd/sd-network.h
+++ b/src/systemd/sd-network.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdnetworkhfoo
 #define foosdnetworkhfoo
 
diff --git a/src/systemd/sd-path.h b/src/systemd/sd-path.h
index be6abdcd03..2dfc8967b4 100644
--- a/src/systemd/sd-path.h
+++ b/src/systemd/sd-path.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdpathhfoo
 #define foosdpathhfoo
 
diff --git a/src/systemd/sd-radv.h b/src/systemd/sd-radv.h
index 9805e3f24d..94d5e71e8a 100644
--- a/src/systemd/sd-radv.h
+++ b/src/systemd/sd-radv.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdradvfoo
 #define foosdradvfoo
 
diff --git a/src/systemd/sd-resolve.h b/src/systemd/sd-resolve.h
index 1c792dab39..14d0cbde04 100644
--- a/src/systemd/sd-resolve.h
+++ b/src/systemd/sd-resolve.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdresolvehfoo
 #define foosdresolvehfoo
 
diff --git a/src/systemd/sd-utf8.h b/src/systemd/sd-utf8.h
index 6781983878..cd02c6a296 100644
--- a/src/systemd/sd-utf8.h
+++ b/src/systemd/sd-utf8.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #ifndef foosdutf8hfoo
 #define foosdutf8hfoo
 
diff --git a/src/sysusers/sysusers.c b/src/sysusers/sysusers.c
index 6ef00d8f25..909a4ca542 100644
--- a/src/sysusers/sysusers.c
+++ b/src/sysusers/sysusers.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/sysv-generator/sysv-generator.c b/src/sysv-generator/sysv-generator.c
index 195f7a0604..cfb34c8f0b 100644
--- a/src/sysv-generator/sysv-generator.c
+++ b/src/sysv-generator/sysv-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/meson.build b/src/test/meson.build
index c09cbe2558..0a43fd03d8 100644
--- a/src/test/meson.build
+++ b/src/test/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 awkscript = 'test-hashmap-ordered.awk'
 test_hashmap_ordered_c = custom_target(
         'test-hashmap-ordered.c',
diff --git a/src/test/test-acl-util.c b/src/test/test-acl-util.c
index 5b572bb0bf..7b66e189ba 100644
--- a/src/test/test-acl-util.c
+++ b/src/test/test-acl-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-af-list.c b/src/test/test-af-list.c
index bbaf18b08a..6934549287 100644
--- a/src/test/test-af-list.c
+++ b/src/test/test-af-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-alloc-util.c b/src/test/test-alloc-util.c
index cc4821eaf5..7e779ac561 100644
--- a/src/test/test-alloc-util.c
+++ b/src/test/test-alloc-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-architecture.c b/src/test/test-architecture.c
index 68975b790a..e81799539d 100644
--- a/src/test/test-architecture.c
+++ b/src/test/test-architecture.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-arphrd-list.c b/src/test/test-arphrd-list.c
index bb51518c9c..2949a8aae0 100644
--- a/src/test/test-arphrd-list.c
+++ b/src/test/test-arphrd-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-ask-password-api.c b/src/test/test-ask-password-api.c
index 86666597c7..da44465821 100644
--- a/src/test/test-ask-password-api.c
+++ b/src/test/test-ask-password-api.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-async.c b/src/test/test-async.c
index 4ebc27f0bd..2055ce25bf 100644
--- a/src/test/test-async.c
+++ b/src/test/test-async.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-barrier.c b/src/test/test-barrier.c
index e6aa3b5cfe..1001cc2a5a 100644
--- a/src/test/test-barrier.c
+++ b/src/test/test-barrier.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-bitmap.c b/src/test/test-bitmap.c
index ff22117745..6bc88a4566 100644
--- a/src/test/test-bitmap.c
+++ b/src/test/test-bitmap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-boot-timestamps.c b/src/test/test-boot-timestamps.c
index 8e68d6510d..37e799d783 100644
--- a/src/test/test-boot-timestamps.c
+++ b/src/test/test-boot-timestamps.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-bpf.c b/src/test/test-bpf.c
index 5b9931753e..361cf100be 100644
--- a/src/test/test-bpf.c
+++ b/src/test/test-bpf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-btrfs.c b/src/test/test-btrfs.c
index ce29d88412..645594ce6c 100644
--- a/src/test/test-btrfs.c
+++ b/src/test/test-btrfs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-calendarspec.c b/src/test/test-calendarspec.c
index bd5bebe66d..1a95b60740 100644
--- a/src/test/test-calendarspec.c
+++ b/src/test/test-calendarspec.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-cap-list.c b/src/test/test-cap-list.c
index c1af277f34..9c82e618f5 100644
--- a/src/test/test-cap-list.c
+++ b/src/test/test-cap-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-capability.c b/src/test/test-capability.c
index 8276c75987..367614708f 100644
--- a/src/test/test-capability.c
+++ b/src/test/test-capability.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-cgroup-mask.c b/src/test/test-cgroup-mask.c
index 4415bc7b9d..10ae523b52 100644
--- a/src/test/test-cgroup-mask.c
+++ b/src/test/test-cgroup-mask.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-cgroup-util.c b/src/test/test-cgroup-util.c
index 0761463067..45eb3ef8b1 100644
--- a/src/test/test-cgroup-util.c
+++ b/src/test/test-cgroup-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-cgroup.c b/src/test/test-cgroup.c
index 71e318a15b..2ae95db162 100644
--- a/src/test/test-cgroup.c
+++ b/src/test/test-cgroup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-clock.c b/src/test/test-clock.c
index 94f8b50f41..11773cc180 100644
--- a/src/test/test-clock.c
+++ b/src/test/test-clock.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-condition.c b/src/test/test-condition.c
index 278ac2ab6c..31e08b2318 100644
--- a/src/test/test-condition.c
+++ b/src/test/test-condition.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-conf-files.c b/src/test/test-conf-files.c
index 777b5ca32b..de91efac72 100644
--- a/src/test/test-conf-files.c
+++ b/src/test/test-conf-files.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-conf-parser.c b/src/test/test-conf-parser.c
index 2974d533c3..770bb9600f 100644
--- a/src/test/test-conf-parser.c
+++ b/src/test/test-conf-parser.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-copy.c b/src/test/test-copy.c
index 187baa2d53..d277b78c5b 100644
--- a/src/test/test-copy.c
+++ b/src/test/test-copy.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-cpu-set-util.c b/src/test/test-cpu-set-util.c
index e510633584..8de7bbe0df 100644
--- a/src/test/test-cpu-set-util.c
+++ b/src/test/test-cpu-set-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-daemon.c b/src/test/test-daemon.c
index e5887cc06a..0e82ba634f 100644
--- a/src/test/test-daemon.c
+++ b/src/test/test-daemon.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-date.c b/src/test/test-date.c
index c09d615396..85867db8dc 100644
--- a/src/test/test-date.c
+++ b/src/test/test-date.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-device-nodes.c b/src/test/test-device-nodes.c
index af75b38948..042907c8e0 100644
--- a/src/test/test-device-nodes.c
+++ b/src/test/test-device-nodes.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-dissect-image.c b/src/test/test-dissect-image.c
index 2bb68be0db..c594047c76 100644
--- a/src/test/test-dissect-image.c
+++ b/src/test/test-dissect-image.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-dlopen.c b/src/test/test-dlopen.c
index 9f5343a7ea..dd43da559f 100644
--- a/src/test/test-dlopen.c
+++ b/src/test/test-dlopen.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-dns-domain.c b/src/test/test-dns-domain.c
index 75bc5e4a73..5f669df051 100644
--- a/src/test/test-dns-domain.c
+++ b/src/test/test-dns-domain.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-ellipsize.c b/src/test/test-ellipsize.c
index d4f09b08a5..421774c074 100644
--- a/src/test/test-ellipsize.c
+++ b/src/test/test-ellipsize.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-engine.c b/src/test/test-engine.c
index a2e68bf5d9..a7cdbb6018 100644
--- a/src/test/test-engine.c
+++ b/src/test/test-engine.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-env-util.c b/src/test/test-env-util.c
index a76f691b79..b1e69d4a5a 100644
--- a/src/test/test-env-util.c
+++ b/src/test/test-env-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-escape.c b/src/test/test-escape.c
index d060afaffa..aa05520abd 100644
--- a/src/test/test-escape.c
+++ b/src/test/test-escape.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-exec-util.c b/src/test/test-exec-util.c
index c192d3522c..bd9c809296 100644
--- a/src/test/test-exec-util.c
+++ b/src/test/test-exec-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-execute.c b/src/test/test-execute.c
index 998724189f..52a9e0a946 100644
--- a/src/test/test-execute.c
+++ b/src/test/test-execute.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-extract-word.c b/src/test/test-extract-word.c
index 7a23fa7b7b..84ab083e87 100644
--- a/src/test/test-extract-word.c
+++ b/src/test/test-extract-word.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-fd-util.c b/src/test/test-fd-util.c
index 4425b5fe5f..4ad8fe75ea 100644
--- a/src/test/test-fd-util.c
+++ b/src/test/test-fd-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-fdset.c b/src/test/test-fdset.c
index adbf99a7ec..bc5d5d4f2b 100644
--- a/src/test/test-fdset.c
+++ b/src/test/test-fdset.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-fileio.c b/src/test/test-fileio.c
index c78eb51b42..e71beb135a 100644
--- a/src/test/test-fileio.c
+++ b/src/test/test-fileio.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-firewall-util.c b/src/test/test-firewall-util.c
index 77e809c5bf..38e433a762 100644
--- a/src/test/test-firewall-util.c
+++ b/src/test/test-firewall-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-fs-util.c b/src/test/test-fs-util.c
index e8fe2b3ff1..3c958917bb 100644
--- a/src/test/test-fs-util.c
+++ b/src/test/test-fs-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-fstab-util.c b/src/test/test-fstab-util.c
index 63a4b8c243..081ec6a901 100644
--- a/src/test/test-fstab-util.c
+++ b/src/test/test-fstab-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-glob-util.c b/src/test/test-glob-util.c
index af866e004b..bd2f8fcfde 100644
--- a/src/test/test-glob-util.c
+++ b/src/test/test-glob-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-hash.c b/src/test/test-hash.c
index 02d1cfaee3..f3b4258d6b 100644
--- a/src/test/test-hash.c
+++ b/src/test/test-hash.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-hashmap-plain.c b/src/test/test-hashmap-plain.c
index 0471cd2f2f..1725766e5a 100644
--- a/src/test/test-hashmap-plain.c
+++ b/src/test/test-hashmap-plain.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-hashmap.c b/src/test/test-hashmap.c
index 83cea360e6..6ea1780cf2 100644
--- a/src/test/test-hashmap.c
+++ b/src/test/test-hashmap.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-helper.c b/src/test/test-helper.c
index 2a4b4347b6..c371e199ba 100644
--- a/src/test/test-helper.c
+++ b/src/test/test-helper.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-helper.h b/src/test/test-helper.h
index f7235527a5..1ee93f5c55 100644
--- a/src/test/test-helper.h
+++ b/src/test/test-helper.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/test/test-hexdecoct.c b/src/test/test-hexdecoct.c
index fcae427e74..5767baebb1 100644
--- a/src/test/test-hexdecoct.c
+++ b/src/test/test-hexdecoct.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-hostname-util.c b/src/test/test-hostname-util.c
index d2c3ea5e0d..d5a986b1cb 100644
--- a/src/test/test-hostname-util.c
+++ b/src/test/test-hostname-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-hostname.c b/src/test/test-hostname.c
index b38507df5d..febb4c64c7 100644
--- a/src/test/test-hostname.c
+++ b/src/test/test-hostname.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-id128.c b/src/test/test-id128.c
index e5f45206f1..b7fca1540c 100644
--- a/src/test/test-id128.c
+++ b/src/test/test-id128.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-in-addr-util.c b/src/test/test-in-addr-util.c
index 8b7a1229fe..73692ec411 100644
--- a/src/test/test-in-addr-util.c
+++ b/src/test/test-in-addr-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-install-root.c b/src/test/test-install-root.c
index 2a932d0af1..efdd82a797 100644
--- a/src/test/test-install-root.c
+++ b/src/test/test-install-root.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-install.c b/src/test/test-install.c
index fb36aa83ca..2f919187a9 100644
--- a/src/test/test-install.c
+++ b/src/test/test-install.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-io-util.c b/src/test/test-io-util.c
index 10bd3833bc..9ed9864f29 100644
--- a/src/test/test-io-util.c
+++ b/src/test/test-io-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-ipcrm.c b/src/test/test-ipcrm.c
index ce6c7aa18a..c901e35841 100644
--- a/src/test/test-ipcrm.c
+++ b/src/test/test-ipcrm.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-job-type.c b/src/test/test-job-type.c
index 7f0b9f253c..46444a0462 100644
--- a/src/test/test-job-type.c
+++ b/src/test/test-job-type.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-journal-importer.c b/src/test/test-journal-importer.c
index a61212ce7b..931a281f54 100644
--- a/src/test/test-journal-importer.c
+++ b/src/test/test-journal-importer.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-libudev.c b/src/test/test-libudev.c
index 0f71c18b65..408d14133b 100644
--- a/src/test/test-libudev.c
+++ b/src/test/test-libudev.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-list.c b/src/test/test-list.c
index 0ccd745cc9..25ffd8fb86 100644
--- a/src/test/test-list.c
+++ b/src/test/test-list.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-locale-util.c b/src/test/test-locale-util.c
index 9e69567e4c..4467bdd48d 100644
--- a/src/test/test-locale-util.c
+++ b/src/test/test-locale-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-log.c b/src/test/test-log.c
index 8ab569f477..9468349cba 100644
--- a/src/test/test-log.c
+++ b/src/test/test-log.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-loopback.c b/src/test/test-loopback.c
index c70633a0f3..3fe897ac08 100644
--- a/src/test/test-loopback.c
+++ b/src/test/test-loopback.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-mount-util.c b/src/test/test-mount-util.c
index ce5e3dc8cd..e2a0b4dfc1 100644
--- a/src/test/test-mount-util.c
+++ b/src/test/test-mount-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-namespace.c b/src/test/test-namespace.c
index de7be1f9cc..3b84b01961 100644
--- a/src/test/test-namespace.c
+++ b/src/test/test-namespace.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-netlink-manual.c b/src/test/test-netlink-manual.c
index ce1c1c0b19..3b10b697af 100644
--- a/src/test/test-netlink-manual.c
+++ b/src/test/test-netlink-manual.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-ns.c b/src/test/test-ns.c
index 5b2a03ff6d..76e2b38b17 100644
--- a/src/test/test-ns.c
+++ b/src/test/test-ns.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-nss.c b/src/test/test-nss.c
index 9f73bc9a5d..acfb6760a9 100644
--- a/src/test/test-nss.c
+++ b/src/test/test-nss.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-parse-util.c b/src/test/test-parse-util.c
index 4cd8291146..8259e133c3 100644
--- a/src/test/test-parse-util.c
+++ b/src/test/test-parse-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-path-lookup.c b/src/test/test-path-lookup.c
index 096326d176..94e5d62e64 100644
--- a/src/test/test-path-lookup.c
+++ b/src/test/test-path-lookup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-path-util.c b/src/test/test-path-util.c
index ff46a896b5..68fe941f15 100644
--- a/src/test/test-path-util.c
+++ b/src/test/test-path-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-path.c b/src/test/test-path.c
index 051dfc4868..3f579b064d 100644
--- a/src/test/test-path.c
+++ b/src/test/test-path.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-prioq.c b/src/test/test-prioq.c
index d81880a655..f558384a18 100644
--- a/src/test/test-prioq.c
+++ b/src/test/test-prioq.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-proc-cmdline.c b/src/test/test-proc-cmdline.c
index 12dac8585b..01b8cf0ca7 100644
--- a/src/test/test-proc-cmdline.c
+++ b/src/test/test-proc-cmdline.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-process-util.c b/src/test/test-process-util.c
index 0f0e2cbcb9..47733788f3 100644
--- a/src/test/test-process-util.c
+++ b/src/test/test-process-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-random-util.c b/src/test/test-random-util.c
index 50f4da270d..d7ccc91f9b 100644
--- a/src/test/test-random-util.c
+++ b/src/test/test-random-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-ratelimit.c b/src/test/test-ratelimit.c
index 990b834c79..dcfa60e94d 100644
--- a/src/test/test-ratelimit.c
+++ b/src/test/test-ratelimit.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-replace-var.c b/src/test/test-replace-var.c
index 60e05d04c9..56ce99e7ac 100644
--- a/src/test/test-replace-var.c
+++ b/src/test/test-replace-var.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-rlimit-util.c b/src/test/test-rlimit-util.c
index 62afd2de5e..93724434a5 100644
--- a/src/test/test-rlimit-util.c
+++ b/src/test/test-rlimit-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-sched-prio.c b/src/test/test-sched-prio.c
index 8f526a8415..804cee34e9 100644
--- a/src/test/test-sched-prio.c
+++ b/src/test/test-sched-prio.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-seccomp.c b/src/test/test-seccomp.c
index a1d3c6280e..36b49ebc71 100644
--- a/src/test/test-seccomp.c
+++ b/src/test/test-seccomp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-selinux.c b/src/test/test-selinux.c
index 190736aa47..f954dbb456 100644
--- a/src/test/test-selinux.c
+++ b/src/test/test-selinux.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-set.c b/src/test/test-set.c
index 3fab350cf6..7bae95bd2b 100644
--- a/src/test/test-set.c
+++ b/src/test/test-set.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-sigbus.c b/src/test/test-sigbus.c
index bcc08b226c..75df8513f1 100644
--- a/src/test/test-sigbus.c
+++ b/src/test/test-sigbus.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-signal-util.c b/src/test/test-signal-util.c
index 92e3927784..13a1d2ba1f 100644
--- a/src/test/test-signal-util.c
+++ b/src/test/test-signal-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-siphash24.c b/src/test/test-siphash24.c
index b74b7ad2dd..7469457be2 100644
--- a/src/test/test-siphash24.c
+++ b/src/test/test-siphash24.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-sizeof.c b/src/test/test-sizeof.c
index bfc421e4ba..f472edcfa1 100644
--- a/src/test/test-sizeof.c
+++ b/src/test/test-sizeof.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-sleep.c b/src/test/test-sleep.c
index 97b6f3015d..3c2b115fbf 100644
--- a/src/test/test-sleep.c
+++ b/src/test/test-sleep.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-socket-util.c b/src/test/test-socket-util.c
index 8ac1d7989f..6a91baf6d2 100644
--- a/src/test/test-socket-util.c
+++ b/src/test/test-socket-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-stat-util.c b/src/test/test-stat-util.c
index 8e027ff26c..b58f31dd53 100644
--- a/src/test/test-stat-util.c
+++ b/src/test/test-stat-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-strbuf.c b/src/test/test-strbuf.c
index 513218c397..891d7b1d42 100644
--- a/src/test/test-strbuf.c
+++ b/src/test/test-strbuf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-string-util.c b/src/test/test-string-util.c
index 5d97080d2c..ed777e1801 100644
--- a/src/test/test-string-util.c
+++ b/src/test/test-string-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-strip-tab-ansi.c b/src/test/test-strip-tab-ansi.c
index 72b0f6fc11..aabb7c40e7 100644
--- a/src/test/test-strip-tab-ansi.c
+++ b/src/test/test-strip-tab-ansi.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-strv.c b/src/test/test-strv.c
index 88da69e2d7..aec00eb817 100644
--- a/src/test/test-strv.c
+++ b/src/test/test-strv.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-strxcpyx.c b/src/test/test-strxcpyx.c
index d95945f6b0..7e2d3c2522 100644
--- a/src/test/test-strxcpyx.c
+++ b/src/test/test-strxcpyx.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-tables.c b/src/test/test-tables.c
index a16b04dbd2..023fae040d 100644
--- a/src/test/test-tables.c
+++ b/src/test/test-tables.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-terminal-util.c b/src/test/test-terminal-util.c
index 373a1b70ba..51b3306d16 100644
--- a/src/test/test-terminal-util.c
+++ b/src/test/test-terminal-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-time-util.c b/src/test/test-time-util.c
index b7a06c7b19..e639ded48c 100644
--- a/src/test/test-time-util.c
+++ b/src/test/test-time-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-tmpfiles.c b/src/test/test-tmpfiles.c
index b4c76048a4..c479eccb8b 100644
--- a/src/test/test-tmpfiles.c
+++ b/src/test/test-tmpfiles.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-udev.c b/src/test/test-udev.c
index c84bd8991e..e765f716ca 100644
--- a/src/test/test-udev.c
+++ b/src/test/test-udev.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-uid-range.c b/src/test/test-uid-range.c
index 41f06a5cec..ce461d606b 100644
--- a/src/test/test-uid-range.c
+++ b/src/test/test-uid-range.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-unaligned.c b/src/test/test-unaligned.c
index 4f64398943..00445fa302 100644
--- a/src/test/test-unaligned.c
+++ b/src/test/test-unaligned.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd
 
diff --git a/src/test/test-unit-file.c b/src/test/test-unit-file.c
index da24c131f7..40eeba6af5 100644
--- a/src/test/test-unit-file.c
+++ b/src/test/test-unit-file.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-unit-name.c b/src/test/test-unit-name.c
index 858bbf8476..013e87e73b 100644
--- a/src/test/test-unit-name.c
+++ b/src/test/test-unit-name.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-user-util.c b/src/test/test-user-util.c
index 2a344a9f93..639804f34a 100644
--- a/src/test/test-user-util.c
+++ b/src/test/test-user-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-utf8.c b/src/test/test-utf8.c
index 1ce5a5a24d..1ea0901f69 100644
--- a/src/test/test-utf8.c
+++ b/src/test/test-utf8.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-util.c b/src/test/test-util.c
index 0a0cb7b55e..2124511bf0 100644
--- a/src/test/test-util.c
+++ b/src/test/test-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-verbs.c b/src/test/test-verbs.c
index 0fcdd9e78d..88276a21ea 100644
--- a/src/test/test-verbs.c
+++ b/src/test/test-verbs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-watchdog.c b/src/test/test-watchdog.c
index 276b803cc2..e068d1ddd4 100644
--- a/src/test/test-watchdog.c
+++ b/src/test/test-watchdog.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-web-util.c b/src/test/test-web-util.c
index 79a3a13af6..f59a196721 100644
--- a/src/test/test-web-util.c
+++ b/src/test/test-web-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-xattr-util.c b/src/test/test-xattr-util.c
index 267f29426c..01c371a39c 100644
--- a/src/test/test-xattr-util.c
+++ b/src/test/test-xattr-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/test/test-xml.c b/src/test/test-xml.c
index b0b72fa78a..5b9abc16ba 100644
--- a/src/test/test-xml.c
+++ b/src/test/test-xml.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timedate/meson.build b/src/timedate/meson.build
index e5abaac05b..80e5cd21be 100644
--- a/src/timedate/meson.build
+++ b/src/timedate/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 if conf.get('ENABLE_TIMEDATED') == 1
         install_data('org.freedesktop.timedate1.conf',
                      install_dir : dbuspolicydir)
diff --git a/src/timedate/org.freedesktop.timedate1.conf b/src/timedate/org.freedesktop.timedate1.conf
index 36557d5841..53f6c8435d 100644
--- a/src/timedate/org.freedesktop.timedate1.conf
+++ b/src/timedate/org.freedesktop.timedate1.conf
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/dbus/1.0/busconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/timedate/org.freedesktop.timedate1.policy.in b/src/timedate/org.freedesktop.timedate1.policy.in
index c706050985..cc2e1652da 100644
--- a/src/timedate/org.freedesktop.timedate1.policy.in
+++ b/src/timedate/org.freedesktop.timedate1.policy.in
@@ -3,6 +3,8 @@
         "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
 
 <!--
+  SPDX-License-Identifier: LGPL-2.1+
+
   This file is part of systemd.
 
   systemd is free software; you can redistribute it and/or modify it
diff --git a/src/timedate/org.freedesktop.timedate1.service b/src/timedate/org.freedesktop.timedate1.service
index 875f4bec78..d5f3a6e30d 100644
--- a/src/timedate/org.freedesktop.timedate1.service
+++ b/src/timedate/org.freedesktop.timedate1.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/timedate/timedatectl.c b/src/timedate/timedatectl.c
index 5121dd153a..d80a917870 100644
--- a/src/timedate/timedatectl.c
+++ b/src/timedate/timedatectl.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timedate/timedated.c b/src/timedate/timedated.c
index 1061b094d3..bd35451ecb 100644
--- a/src/timedate/timedated.c
+++ b/src/timedate/timedated.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timesync/meson.build b/src/timesync/meson.build
index 690af9552c..e8bd3d59a9 100644
--- a/src/timesync/meson.build
+++ b/src/timesync/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 systemd_timesyncd_sources = files('''
         timesyncd.c
         timesyncd-manager.c
diff --git a/src/timesync/test-timesync.c b/src/timesync/test-timesync.c
index a5a3433022..7d5cd38078 100644
--- a/src/timesync/test-timesync.c
+++ b/src/timesync/test-timesync.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timesync/timesyncd-conf.c b/src/timesync/timesyncd-conf.c
index 333f81a948..124d03da0b 100644
--- a/src/timesync/timesyncd-conf.c
+++ b/src/timesync/timesyncd-conf.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timesync/timesyncd-conf.h b/src/timesync/timesyncd-conf.h
index 0c4b44e707..8252298fe0 100644
--- a/src/timesync/timesyncd-conf.h
+++ b/src/timesync/timesyncd-conf.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/timesync/timesyncd-manager.c b/src/timesync/timesyncd-manager.c
index dad460f202..25f54c0d94 100644
--- a/src/timesync/timesyncd-manager.c
+++ b/src/timesync/timesyncd-manager.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timesync/timesyncd-manager.h b/src/timesync/timesyncd-manager.h
index d371f21f6a..4d6258839b 100644
--- a/src/timesync/timesyncd-manager.h
+++ b/src/timesync/timesyncd-manager.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/timesync/timesyncd-server.c b/src/timesync/timesyncd-server.c
index 57a7bf2c25..bd0030b982 100644
--- a/src/timesync/timesyncd-server.c
+++ b/src/timesync/timesyncd-server.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/timesync/timesyncd-server.h b/src/timesync/timesyncd-server.h
index 8a19e41d67..2dc51a9730 100644
--- a/src/timesync/timesyncd-server.h
+++ b/src/timesync/timesyncd-server.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/timesync/timesyncd.c b/src/timesync/timesyncd.c
index c026ef79a4..962285f7b1 100644
--- a/src/timesync/timesyncd.c
+++ b/src/timesync/timesyncd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/tmpfiles/tmpfiles.c b/src/tmpfiles/tmpfiles.c
index a21127b600..173774ea0a 100644
--- a/src/tmpfiles/tmpfiles.c
+++ b/src/tmpfiles/tmpfiles.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/tty-ask-password-agent/tty-ask-password-agent.c b/src/tty-ask-password-agent/tty-ask-password-agent.c
index 9dd7ea1811..3824d2f5b5 100644
--- a/src/tty-ask-password-agent/tty-ask-password-agent.c
+++ b/src/tty-ask-password-agent/tty-ask-password-agent.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/ata_id/ata_id.c b/src/udev/ata_id/ata_id.c
index 1dc62b69d5..7e3654c30f 100644
--- a/src/udev/ata_id/ata_id.c
+++ b/src/udev/ata_id/ata_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * ata_id - reads product/serial number from ATA drives
  *
diff --git a/src/udev/cdrom_id/cdrom_id.c b/src/udev/cdrom_id/cdrom_id.c
index b9cf3bdf68..9644861adc 100644
--- a/src/udev/cdrom_id/cdrom_id.c
+++ b/src/udev/cdrom_id/cdrom_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * cdrom_id - optical drive and media information prober
  *
diff --git a/src/udev/collect/collect.c b/src/udev/collect/collect.c
index 52229d82b5..7b5fdf50b7 100644
--- a/src/udev/collect/collect.c
+++ b/src/udev/collect/collect.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Collect variables across events.
  *
diff --git a/src/udev/meson.build b/src/udev/meson.build
index dd24b7e9f7..d01cf8f194 100644
--- a/src/udev/meson.build
+++ b/src/udev/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 udevadm_sources = files('''
         udevadm.c
         udevadm-info.c
diff --git a/src/udev/mtd_probe/mtd_probe.c b/src/udev/mtd_probe/mtd_probe.c
index 462fab7623..1d692f1187 100644
--- a/src/udev/mtd_probe/mtd_probe.c
+++ b/src/udev/mtd_probe/mtd_probe.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 - Maxim Levitsky
  *
diff --git a/src/udev/mtd_probe/mtd_probe.h b/src/udev/mtd_probe/mtd_probe.h
index 68e4954537..39841f9b7d 100644
--- a/src/udev/mtd_probe/mtd_probe.h
+++ b/src/udev/mtd_probe/mtd_probe.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 #pragma once
 
 /*
diff --git a/src/udev/mtd_probe/probe_smartmedia.c b/src/udev/mtd_probe/probe_smartmedia.c
index 89bceaa146..eb74fe1eb6 100644
--- a/src/udev/mtd_probe/probe_smartmedia.c
+++ b/src/udev/mtd_probe/probe_smartmedia.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2010 - Maxim Levitsky
  *
diff --git a/src/udev/net/ethtool-util.c b/src/udev/net/ethtool-util.c
index a5b87cf51a..3ed8a51fd4 100644
--- a/src/udev/net/ethtool-util.c
+++ b/src/udev/net/ethtool-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
  This file is part of systemd.
 
diff --git a/src/udev/net/ethtool-util.h b/src/udev/net/ethtool-util.h
index 909b56b1e6..5681472a9a 100644
--- a/src/udev/net/ethtool-util.h
+++ b/src/udev/net/ethtool-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index fcbadf3e79..876525c3ff 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
  This file is part of systemd.
 
diff --git a/src/udev/net/link-config.h b/src/udev/net/link-config.h
index ff91a65135..a413251bd0 100644
--- a/src/udev/net/link-config.h
+++ b/src/udev/net/link-config.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 #pragma once
 
 /***
diff --git a/src/udev/scsi_id/scsi.h b/src/udev/scsi_id/scsi.h
index a27a84a40a..8b759a768d 100644
--- a/src/udev/scsi_id/scsi.h
+++ b/src/udev/scsi_id/scsi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 #pragma once
 
 /*
diff --git a/src/udev/scsi_id/scsi_id.c b/src/udev/scsi_id/scsi_id.c
index 0abbc510ee..ab4ee7b00b 100644
--- a/src/udev/scsi_id/scsi_id.c
+++ b/src/udev/scsi_id/scsi_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) IBM Corp. 2003
  * Copyright (C) SUSE Linux Products GmbH, 2006
diff --git a/src/udev/scsi_id/scsi_id.h b/src/udev/scsi_id/scsi_id.h
index 5c2e1c28ee..9a33f6a158 100644
--- a/src/udev/scsi_id/scsi_id.h
+++ b/src/udev/scsi_id/scsi_id.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 #pragma once
 
 /*
diff --git a/src/udev/scsi_id/scsi_serial.c b/src/udev/scsi_id/scsi_serial.c
index b56a541f78..11c2b953e4 100644
--- a/src/udev/scsi_id/scsi_serial.c
+++ b/src/udev/scsi_id/scsi_serial.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) IBM Corp. 2003
  *
diff --git a/src/udev/udev-builtin-blkid.c b/src/udev/udev-builtin-blkid.c
index 4487e82693..6ff244e96c 100644
--- a/src/udev/udev-builtin-blkid.c
+++ b/src/udev/udev-builtin-blkid.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * probe disks for filesystems and partitions
  *
diff --git a/src/udev/udev-builtin-btrfs.c b/src/udev/udev-builtin-btrfs.c
index 4d59cc82a8..9e0f1e0aac 100644
--- a/src/udev/udev-builtin-btrfs.c
+++ b/src/udev/udev-builtin-btrfs.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udev-builtin-hwdb.c b/src/udev/udev-builtin-hwdb.c
index acd1d1a6de..ca7f7c2304 100644
--- a/src/udev/udev-builtin-hwdb.c
+++ b/src/udev/udev-builtin-hwdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udev-builtin-input_id.c b/src/udev/udev-builtin-input_id.c
index 60f760ef77..b13fdb135b 100644
--- a/src/udev/udev-builtin-input_id.c
+++ b/src/udev/udev-builtin-input_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * expose input properties via udev
  *
diff --git a/src/udev/udev-builtin-keyboard.c b/src/udev/udev-builtin-keyboard.c
index e316bb93ba..0044280399 100644
--- a/src/udev/udev-builtin-keyboard.c
+++ b/src/udev/udev-builtin-keyboard.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udev-builtin-kmod.c b/src/udev/udev-builtin-kmod.c
index e0e0fa4b46..2530fdfd23 100644
--- a/src/udev/udev-builtin-kmod.c
+++ b/src/udev/udev-builtin-kmod.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * load kernel modules
  *
diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index 46eb6114ff..803c33fea3 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udev-builtin-net_setup_link.c b/src/udev/udev-builtin-net_setup_link.c
index 291f4dad48..40158e0afc 100644
--- a/src/udev/udev-builtin-net_setup_link.c
+++ b/src/udev/udev-builtin-net_setup_link.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udev-builtin-path_id.c b/src/udev/udev-builtin-path_id.c
index f5d7c23d9f..447e215570 100644
--- a/src/udev/udev-builtin-path_id.c
+++ b/src/udev/udev-builtin-path_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * compose persistent device path
  *
diff --git a/src/udev/udev-builtin-uaccess.c b/src/udev/udev-builtin-uaccess.c
index d92a10e1c5..edea242e65 100644
--- a/src/udev/udev-builtin-uaccess.c
+++ b/src/udev/udev-builtin-uaccess.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * manage device node user ACL
  *
diff --git a/src/udev/udev-builtin-usb_id.c b/src/udev/udev-builtin-usb_id.c
index 3ce075f079..6d22dfe82c 100644
--- a/src/udev/udev-builtin-usb_id.c
+++ b/src/udev/udev-builtin-usb_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * USB device properties and persistent device path
  *
diff --git a/src/udev/udev-builtin.c b/src/udev/udev-builtin.c
index e4dccd0b09..db2b6874f8 100644
--- a/src/udev/udev-builtin.c
+++ b/src/udev/udev-builtin.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udev-ctrl.c b/src/udev/udev-ctrl.c
index 92e4f8d9c0..7b8110582d 100644
--- a/src/udev/udev-ctrl.c
+++ b/src/udev/udev-ctrl.c
@@ -1,4 +1,5 @@
-/*
+/* SPDX-License-Identifier: LGPL-2.1+
+ *
  * libudev - interface to udev device information
  *
  * Copyright (C) 2008 Kay Sievers <kay@vrfy.org>
diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index 4cadff7f6f..07064e2597 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2003-2013 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udev-node.c b/src/udev/udev-node.c
index 01e56cac36..dcea890d7f 100644
--- a/src/udev/udev-node.c
+++ b/src/udev/udev-node.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2003-2013 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udev-rules.c b/src/udev/udev-rules.c
index b061210c7c..15a309fe79 100644
--- a/src/udev/udev-rules.c
+++ b/src/udev/udev-rules.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2003-2012 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udev-watch.c b/src/udev/udev-watch.c
index aa432bb90a..351cb6345a 100644
--- a/src/udev/udev-watch.c
+++ b/src/udev/udev-watch.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2004-2012 Kay Sievers <kay@vrfy.org>
  * Copyright (C) 2009 Canonical Ltd.
diff --git a/src/udev/udev.h b/src/udev/udev.h
index 2204db5a95..ea11c2d29e 100644
--- a/src/udev/udev.h
+++ b/src/udev/udev.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 #pragma once
 
 /*
diff --git a/src/udev/udevadm-control.c b/src/udev/udevadm-control.c
index 6f8e96a123..735deab252 100644
--- a/src/udev/udevadm-control.c
+++ b/src/udev/udevadm-control.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2005-2011 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevadm-hwdb.c b/src/udev/udevadm-hwdb.c
index 4a23270dfb..ba7a15e6e9 100644
--- a/src/udev/udevadm-hwdb.c
+++ b/src/udev/udevadm-hwdb.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/udev/udevadm-info.c b/src/udev/udevadm-info.c
index 16b2aab0a1..df7fbc21ae 100644
--- a/src/udev/udevadm-info.c
+++ b/src/udev/udevadm-info.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2004-2009 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevadm-monitor.c b/src/udev/udevadm-monitor.c
index 77ae3a9732..a369dc2ac2 100644
--- a/src/udev/udevadm-monitor.c
+++ b/src/udev/udevadm-monitor.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2004-2010 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevadm-settle.c b/src/udev/udevadm-settle.c
index 6a5dc6e9e4..d72b6ffe20 100644
--- a/src/udev/udevadm-settle.c
+++ b/src/udev/udevadm-settle.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2006-2009 Kay Sievers <kay@vrfy.org>
  * Copyright (C) 2009 Canonical Ltd.
diff --git a/src/udev/udevadm-test-builtin.c b/src/udev/udevadm-test-builtin.c
index 3bcd09061a..2cdbec050f 100644
--- a/src/udev/udevadm-test-builtin.c
+++ b/src/udev/udevadm-test-builtin.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2011 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevadm-test.c b/src/udev/udevadm-test.c
index b180e24369..6d20987fa2 100644
--- a/src/udev/udevadm-test.c
+++ b/src/udev/udevadm-test.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2003-2004 Greg Kroah-Hartman <greg@kroah.com>
  * Copyright (C) 2004-2008 Kay Sievers <kay@vrfy.org>
diff --git a/src/udev/udevadm-trigger.c b/src/udev/udevadm-trigger.c
index e2ce317e01..23aaa47423 100644
--- a/src/udev/udevadm-trigger.c
+++ b/src/udev/udevadm-trigger.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2008-2009 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevadm-util.c b/src/udev/udevadm-util.c
index beda7c36bb..b71b9ebd99 100644
--- a/src/udev/udevadm-util.c
+++ b/src/udev/udevadm-util.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2008-2009 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevadm-util.h b/src/udev/udevadm-util.h
index dc712b0d93..7963acaa53 100644
--- a/src/udev/udevadm-util.h
+++ b/src/udev/udevadm-util.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 #pragma once
 
 /*
diff --git a/src/udev/udevadm.c b/src/udev/udevadm.c
index befc3bad7b..06be1e8af5 100644
--- a/src/udev/udevadm.c
+++ b/src/udev/udevadm.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2007-2012 Kay Sievers <kay@vrfy.org>
  *
diff --git a/src/udev/udevd.c b/src/udev/udevd.c
index 83f846fbc8..d18e586d72 100644
--- a/src/udev/udevd.c
+++ b/src/udev/udevd.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2004-2012 Kay Sievers <kay@vrfy.org>
  * Copyright (C) 2004 Chris Friesen <chris_friesen@sympatico.ca>
diff --git a/src/udev/v4l_id/v4l_id.c b/src/udev/v4l_id/v4l_id.c
index aec6676a33..05f31d479e 100644
--- a/src/udev/v4l_id/v4l_id.c
+++ b/src/udev/v4l_id/v4l_id.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2009 Kay Sievers <kay@vrfy.org>
  * Copyright (c) 2009 Filippo Argiolas <filippo.argiolas@gmail.com>
diff --git a/src/update-done/update-done.c b/src/update-done/update-done.c
index ec467f1953..ccf2d47196 100644
--- a/src/update-done/update-done.c
+++ b/src/update-done/update-done.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/update-utmp/update-utmp.c b/src/update-utmp/update-utmp.c
index b1b3800cea..e16f67be29 100644
--- a/src/update-utmp/update-utmp.c
+++ b/src/update-utmp/update-utmp.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/user-sessions/user-sessions.c b/src/user-sessions/user-sessions.c
index 9b29b5ba1d..795766a657 100644
--- a/src/user-sessions/user-sessions.c
+++ b/src/user-sessions/user-sessions.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/vconsole/90-vconsole.rules.in b/src/vconsole/90-vconsole.rules.in
index 84b4d575bd..11137163ed 100644
--- a/src/vconsole/90-vconsole.rules.in
+++ b/src/vconsole/90-vconsole.rules.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/src/vconsole/meson.build b/src/vconsole/meson.build
index 120057cec1..745aec4f14 100644
--- a/src/vconsole/meson.build
+++ b/src/vconsole/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 if conf.get('ENABLE_VCONSOLE') == 1
         vconsole_rules = configure_file(
                 input : '90-vconsole.rules.in',
diff --git a/src/vconsole/vconsole-setup.c b/src/vconsole/vconsole-setup.c
index f531aece7f..c928741a4e 100644
--- a/src/vconsole/vconsole-setup.c
+++ b/src/vconsole/vconsole-setup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/veritysetup/veritysetup-generator.c b/src/veritysetup/veritysetup-generator.c
index 0bb0bd6e8f..ef43aed42f 100644
--- a/src/veritysetup/veritysetup-generator.c
+++ b/src/veritysetup/veritysetup-generator.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/veritysetup/veritysetup.c b/src/veritysetup/veritysetup.c
index c6a79541f7..18554aa231 100644
--- a/src/veritysetup/veritysetup.c
+++ b/src/veritysetup/veritysetup.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/src/volatile-root/volatile-root.c b/src/volatile-root/volatile-root.c
index 3c0b6fa1de..56aaa373ff 100644
--- a/src/volatile-root/volatile-root.c
+++ b/src/volatile-root/volatile-root.c
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
 /***
   This file is part of systemd.
 
diff --git a/sysctl.d/meson.build b/sysctl.d/meson.build
index 121874c7d2..1e612de41e 100644
--- a/sysctl.d/meson.build
+++ b/sysctl.d/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 install_data(
         '50-default.conf',
         install_dir : sysctldir)
diff --git a/system-preset/90-systemd.preset b/system-preset/90-systemd.preset
index 98bc4c3c55..11960e5423 100644
--- a/system-preset/90-systemd.preset
+++ b/system-preset/90-systemd.preset
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/sysusers.d/meson.build b/sysusers.d/meson.build
index 2f3f3ebd99..a240761837 100644
--- a/sysusers.d/meson.build
+++ b/sysusers.d/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 in_files = ['basic.conf']
 
 enable_sysusers = conf.get('ENABLE_SYSUSERS') == 1
diff --git a/test/create-sys-script.py b/test/create-sys-script.py
index a4f1f302f6..e25f3b4f8f 100755
--- a/test/create-sys-script.py
+++ b/test/create-sys-script.py
@@ -1,6 +1,8 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
 
 OUTFILE_HEADER = """#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # create-sys-script.py
 #
diff --git a/test/hwdb-test.sh b/test/hwdb-test.sh
index 2221c0d7fd..68c7692eca 100755
--- a/test/hwdb-test.sh
+++ b/test/hwdb-test.sh
@@ -1,5 +1,7 @@
 #!/bin/sh
-# call built systemd-hwdb update on our hwdb files to ensure that they parse
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Call built systemd-hwdb update on our hwdb files to ensure that they parse
 # without error
 #
 # (C) 2016 Canonical Ltd.
@@ -9,7 +11,7 @@
 # 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.
-
+#
 # systemd is distributed in the hope that it will be useful, but
 # WITHOUT ANY WARRANTY; without even the implied warranty of
 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
diff --git a/test/meson.build b/test/meson.build
index 69d6c758b0..a621f5db52 100644
--- a/test/meson.build
+++ b/test/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 test_data_files = '''
         a.service
         b.service
diff --git a/test/networkd-test.py b/test/networkd-test.py
index 5760ca5137..3918d85ef0 100755
--- a/test/networkd-test.py
+++ b/test/networkd-test.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # networkd integration test
 # This uses temporary configuration in /run and temporary veth devices, and
diff --git a/test/rule-syntax-check.py b/test/rule-syntax-check.py
index 14739df493..4f27fb015b 100755
--- a/test/rule-syntax-check.py
+++ b/test/rule-syntax-check.py
@@ -1,4 +1,6 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
+#
 # Simple udev rules syntax checker
 #
 # (C) 2010 Canonical Ltd.
diff --git a/test/sys-script.py b/test/sys-script.py
index 2de7d7ea30..468c1dc972 100755
--- a/test/sys-script.py
+++ b/test/sys-script.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # sys-script.py
 #
diff --git a/test/sysv-generator-test.py b/test/sysv-generator-test.py
index 18bb40f812..0b4710aeab 100755
--- a/test/sysv-generator-test.py
+++ b/test/sysv-generator-test.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1+
 #
 # systemd-sysv-generator integration test
 #
diff --git a/test/test-exec-deserialization.py b/test/test-exec-deserialization.py
index c3fe0824c7..1b8863746c 100755
--- a/test/test-exec-deserialization.py
+++ b/test/test-exec-deserialization.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-
+# SPDX-License-Identifier: LGPL-2.1+
 #
 #  Copyright 2017 Michal Sekletar <msekleta@redhat.com>
 #
diff --git a/tmpfiles.d/meson.build b/tmpfiles.d/meson.build
index 9a594a289a..37a8dfea2d 100644
--- a/tmpfiles.d/meson.build
+++ b/tmpfiles.d/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 enable_tmpfiles = conf.get('ENABLE_TMPFILES') == 1
 
 tmpfiles = [['home.conf',            ''],
diff --git a/tools/catalog-report.py b/tools/catalog-report.py
index 357e498cdc..426ea0d891 100755
--- a/tools/catalog-report.py
+++ b/tools/catalog-report.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 # -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+# SPDX-License-Identifier: MIT
 #
 # This file is part of systemd. It is distrubuted under the MIT license, see
 # below.
diff --git a/tools/gdb-sd_dump_hashmaps.py b/tools/gdb-sd_dump_hashmaps.py
index 62ce8006f5..b3c356b579 100644
--- a/tools/gdb-sd_dump_hashmaps.py
+++ b/tools/gdb-sd_dump_hashmaps.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+# SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
diff --git a/tools/make-directive-index.py b/tools/make-directive-index.py
index f9203ddd1a..fb2b0b7c6f 100755
--- a/tools/make-directive-index.py
+++ b/tools/make-directive-index.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+# SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
diff --git a/tools/make-man-index.py b/tools/make-man-index.py
index 0618e2e677..5ff3616652 100755
--- a/tools/make-man-index.py
+++ b/tools/make-man-index.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+# SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
diff --git a/tools/make-man-rules.py b/tools/make-man-rules.py
index e0f18d6fbe..444d4a6ee4 100755
--- a/tools/make-man-rules.py
+++ b/tools/make-man-rules.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+#  SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
diff --git a/tools/xml_helper.py b/tools/xml_helper.py
index 0088be5bd9..47434c7156 100755
--- a/tools/xml_helper.py
+++ b/tools/xml_helper.py
@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 #  -*- Mode: python; coding: utf-8; indent-tabs-mode: nil -*- */
+#  SPDX-License-Identifier: LGPL-2.1+
 #
 #  This file is part of systemd.
 #
@@ -27,9 +28,11 @@ class CustomResolver(tree.Resolver):
 
 _parser = tree.XMLParser()
 _parser.resolvers.add(CustomResolver())
+
 def xml_parse(page):
     doc = tree.parse(page, _parser)
     doc.xinclude()
     return doc
+
 def xml_print(xml):
     return tree.tostring(xml, pretty_print=True, encoding='utf-8')
diff --git a/units/basic.target b/units/basic.target
index 3e3527f894..4f44292249 100644
--- a/units/basic.target
+++ b/units/basic.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/bluetooth.target b/units/bluetooth.target
index dd4ae14cfb..62407d363e 100644
--- a/units/bluetooth.target
+++ b/units/bluetooth.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/busnames.target b/units/busnames.target
index 5e866b403d..9e2d7c3194 100644
--- a/units/busnames.target
+++ b/units/busnames.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/console-getty.service.m4.in b/units/console-getty.service.m4.in
index e75576adf7..3c553240a2 100644
--- a/units/console-getty.service.m4.in
+++ b/units/console-getty.service.m4.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/container-getty@.service.m4.in b/units/container-getty@.service.m4.in
index 4b822f0e3b..087ab7f9b1 100644
--- a/units/container-getty@.service.m4.in
+++ b/units/container-getty@.service.m4.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/cryptsetup-pre.target b/units/cryptsetup-pre.target
index 6cb28a61ae..12e4107f60 100644
--- a/units/cryptsetup-pre.target
+++ b/units/cryptsetup-pre.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/cryptsetup.target b/units/cryptsetup.target
index 10b17fd387..fdb572bc70 100644
--- a/units/cryptsetup.target
+++ b/units/cryptsetup.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/debug-shell.service.in b/units/debug-shell.service.in
index f72e5ef6b6..2d48faa105 100644
--- a/units/debug-shell.service.in
+++ b/units/debug-shell.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/dev-hugepages.mount b/units/dev-hugepages.mount
index 86ad7ac2c9..278ed9b610 100644
--- a/units/dev-hugepages.mount
+++ b/units/dev-hugepages.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/dev-mqueue.mount b/units/dev-mqueue.mount
index b2adfeb835..be32433d6c 100644
--- a/units/dev-mqueue.mount
+++ b/units/dev-mqueue.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/emergency.service.in b/units/emergency.service.in
index 9a81fc4da9..d259b6b112 100644
--- a/units/emergency.service.in
+++ b/units/emergency.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/emergency.target b/units/emergency.target
index 0760d66f95..a4e954e857 100644
--- a/units/emergency.target
+++ b/units/emergency.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/exit.target b/units/exit.target
index f5f953d112..0a79533a9e 100644
--- a/units/exit.target
+++ b/units/exit.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/final.target b/units/final.target
index 42819105c8..0e12386d4d 100644
--- a/units/final.target
+++ b/units/final.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/getty-pre.target b/units/getty-pre.target
index f6c78b6c2e..adb98bf92c 100644
--- a/units/getty-pre.target
+++ b/units/getty-pre.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/getty.target b/units/getty.target
index c33d44657a..b3110179bf 100644
--- a/units/getty.target
+++ b/units/getty.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/getty@.service.m4 b/units/getty@.service.m4
index ff1b3c3d87..80e793bb73 100644
--- a/units/getty@.service.m4
+++ b/units/getty@.service.m4
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/graphical.target b/units/graphical.target
index 87be97e13a..f3e30e9756 100644
--- a/units/graphical.target
+++ b/units/graphical.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/halt-local.service.in b/units/halt-local.service.in
index c8be8965a3..f6c2e9c692 100644
--- a/units/halt-local.service.in
+++ b/units/halt-local.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/halt.target b/units/halt.target
index a21d984b26..87c33745f2 100644
--- a/units/halt.target
+++ b/units/halt.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/hibernate.target b/units/hibernate.target
index 0e1bc03258..8580c658e6 100644
--- a/units/hibernate.target
+++ b/units/hibernate.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/hybrid-sleep.target b/units/hybrid-sleep.target
index 410e131b6e..e5e22b8187 100644
--- a/units/hybrid-sleep.target
+++ b/units/hybrid-sleep.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-cleanup.service.in b/units/initrd-cleanup.service.in
index b1dda16b5f..9775540c94 100644
--- a/units/initrd-cleanup.service.in
+++ b/units/initrd-cleanup.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-fs.target b/units/initrd-fs.target
index 7ec838a680..33822bde66 100644
--- a/units/initrd-fs.target
+++ b/units/initrd-fs.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-parse-etc.service.in b/units/initrd-parse-etc.service.in
index 42c059bbd2..2b3cd61cd6 100644
--- a/units/initrd-parse-etc.service.in
+++ b/units/initrd-parse-etc.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-root-device.target b/units/initrd-root-device.target
index 9d44d2d303..580c666b23 100644
--- a/units/initrd-root-device.target
+++ b/units/initrd-root-device.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-root-fs.target b/units/initrd-root-fs.target
index 64f0a9291c..9b955f618a 100644
--- a/units/initrd-root-fs.target
+++ b/units/initrd-root-fs.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-switch-root.service.in b/units/initrd-switch-root.service.in
index d31497f5e3..6ce468e872 100644
--- a/units/initrd-switch-root.service.in
+++ b/units/initrd-switch-root.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-switch-root.target b/units/initrd-switch-root.target
index 934d82f667..ad82245121 100644
--- a/units/initrd-switch-root.target
+++ b/units/initrd-switch-root.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd-udevadm-cleanup-db.service.in b/units/initrd-udevadm-cleanup-db.service.in
index 5c6654efc4..5059605c27 100644
--- a/units/initrd-udevadm-cleanup-db.service.in
+++ b/units/initrd-udevadm-cleanup-db.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/initrd.target b/units/initrd.target
index 8be7e2b399..a74a447c91 100644
--- a/units/initrd.target
+++ b/units/initrd.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/kexec.target b/units/kexec.target
index 90795d0c5a..706cd7065c 100644
--- a/units/kexec.target
+++ b/units/kexec.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/kmod-static-nodes.service.in b/units/kmod-static-nodes.service.in
index a9c8df1184..a6c5eb228f 100644
--- a/units/kmod-static-nodes.service.in
+++ b/units/kmod-static-nodes.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/ldconfig.service b/units/ldconfig.service
index d7b78bacf9..3c3cbf5607 100644
--- a/units/ldconfig.service
+++ b/units/ldconfig.service
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/local-fs-pre.target b/units/local-fs-pre.target
index 809f2ed236..9aca15b953 100644
--- a/units/local-fs-pre.target
+++ b/units/local-fs-pre.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/local-fs.target b/units/local-fs.target
index d2e5429c71..6ba4930087 100644
--- a/units/local-fs.target
+++ b/units/local-fs.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/machine.slice b/units/machine.slice
index 3d40dfd73b..b4e4c17d88 100644
--- a/units/machine.slice
+++ b/units/machine.slice
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/machines.target b/units/machines.target
index e07b0bb6ae..224765aa90 100644
--- a/units/machines.target
+++ b/units/machines.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/meson.build b/units/meson.build
index 5772a27cae..814ee7885b 100644
--- a/units/meson.build
+++ b/units/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 units = [
         ['basic.target',                        ''],
         ['bluetooth.target',                    ''],
diff --git a/units/multi-user.target b/units/multi-user.target
index 0f0e5e99a7..386e1b547d 100644
--- a/units/multi-user.target
+++ b/units/multi-user.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/network-online.target b/units/network-online.target
index 5130d8c5e3..8b8c7851e2 100644
--- a/units/network-online.target
+++ b/units/network-online.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/network-pre.target b/units/network-pre.target
index 0d54a4cff8..806eb720f8 100644
--- a/units/network-pre.target
+++ b/units/network-pre.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/network.target b/units/network.target
index f8331b6124..3e4fdff144 100644
--- a/units/network.target
+++ b/units/network.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/nss-lookup.target b/units/nss-lookup.target
index c9e3a7c419..8d56c8ea36 100644
--- a/units/nss-lookup.target
+++ b/units/nss-lookup.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/nss-user-lookup.target b/units/nss-user-lookup.target
index 80023cdfb6..7436b6c80d 100644
--- a/units/nss-user-lookup.target
+++ b/units/nss-user-lookup.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/paths.target b/units/paths.target
index 25c7fd031e..9b6ed1c13f 100644
--- a/units/paths.target
+++ b/units/paths.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/poweroff.target b/units/poweroff.target
index dd92d816ca..47c109ceed 100644
--- a/units/poweroff.target
+++ b/units/poweroff.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/printer.target b/units/printer.target
index a6b86caa8d..e1fb0d4e34 100644
--- a/units/printer.target
+++ b/units/printer.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/proc-sys-fs-binfmt_misc.automount b/units/proc-sys-fs-binfmt_misc.automount
index 1067bcd839..30a6bc9918 100644
--- a/units/proc-sys-fs-binfmt_misc.automount
+++ b/units/proc-sys-fs-binfmt_misc.automount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/proc-sys-fs-binfmt_misc.mount b/units/proc-sys-fs-binfmt_misc.mount
index 27773cd4ea..091191e139 100644
--- a/units/proc-sys-fs-binfmt_misc.mount
+++ b/units/proc-sys-fs-binfmt_misc.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/quotaon.service.in b/units/quotaon.service.in
index f3e1e270c9..25c747439a 100644
--- a/units/quotaon.service.in
+++ b/units/quotaon.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/rc-local.service.in b/units/rc-local.service.in
index 480dddbe37..5dbd62aecb 100644
--- a/units/rc-local.service.in
+++ b/units/rc-local.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/reboot.target b/units/reboot.target
index 668b98d9e4..c2782db631 100644
--- a/units/reboot.target
+++ b/units/reboot.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/remote-cryptsetup.target b/units/remote-cryptsetup.target
index ac4e1b71db..4445d5defe 100644
--- a/units/remote-cryptsetup.target
+++ b/units/remote-cryptsetup.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/remote-fs-pre.target b/units/remote-fs-pre.target
index 36a196cfda..3f22605c8c 100644
--- a/units/remote-fs-pre.target
+++ b/units/remote-fs-pre.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/remote-fs.target b/units/remote-fs.target
index 43ffa5c107..0d44348e75 100644
--- a/units/remote-fs.target
+++ b/units/remote-fs.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/rescue.service.in b/units/rescue.service.in
index 6cd5aa4864..2a8f034b94 100644
--- a/units/rescue.service.in
+++ b/units/rescue.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/rescue.target b/units/rescue.target
index bd92ed2df3..0e04a94f39 100644
--- a/units/rescue.target
+++ b/units/rescue.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/rpcbind.target b/units/rpcbind.target
index e03e915ee0..801ee4d6ef 100644
--- a/units/rpcbind.target
+++ b/units/rpcbind.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/serial-getty@.service.m4 b/units/serial-getty@.service.m4
index e56f47652c..757b86ab2f 100644
--- a/units/serial-getty@.service.m4
+++ b/units/serial-getty@.service.m4
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/shutdown.target b/units/shutdown.target
index 73e302b8b2..d48e6d6494 100644
--- a/units/shutdown.target
+++ b/units/shutdown.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sigpwr.target b/units/sigpwr.target
index a52e7cffc9..8228541dac 100644
--- a/units/sigpwr.target
+++ b/units/sigpwr.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sleep.target b/units/sleep.target
index 10c7c8d594..9409dc6707 100644
--- a/units/sleep.target
+++ b/units/sleep.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/slices.target b/units/slices.target
index a29310c047..84a04d6385 100644
--- a/units/slices.target
+++ b/units/slices.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/smartcard.target b/units/smartcard.target
index 5fefe84703..717ea2311d 100644
--- a/units/smartcard.target
+++ b/units/smartcard.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sockets.target b/units/sockets.target
index 26ab065d02..9af67fdb1f 100644
--- a/units/sockets.target
+++ b/units/sockets.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sound.target b/units/sound.target
index 6699adeceb..19afc2a637 100644
--- a/units/sound.target
+++ b/units/sound.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/suspend.target b/units/suspend.target
index 80d652755c..1a156b4147 100644
--- a/units/suspend.target
+++ b/units/suspend.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/swap.target b/units/swap.target
index 23a7d0dc9c..8cef5b6489 100644
--- a/units/swap.target
+++ b/units/swap.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sys-fs-fuse-connections.mount b/units/sys-fs-fuse-connections.mount
index 492ceb16f3..7e7b05c3a2 100644
--- a/units/sys-fs-fuse-connections.mount
+++ b/units/sys-fs-fuse-connections.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sys-kernel-config.mount b/units/sys-kernel-config.mount
index b585f32561..e213ca58b3 100644
--- a/units/sys-kernel-config.mount
+++ b/units/sys-kernel-config.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sys-kernel-debug.mount b/units/sys-kernel-debug.mount
index 808dbf08f4..53ce820b87 100644
--- a/units/sys-kernel-debug.mount
+++ b/units/sys-kernel-debug.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/sysinit.target b/units/sysinit.target
index ec33503330..b6c16a1412 100644
--- a/units/sysinit.target
+++ b/units/sysinit.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/syslog.socket b/units/syslog.socket
index 43981904ea..c4b1cea2d6 100644
--- a/units/syslog.socket
+++ b/units/syslog.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/system-update-cleanup.service.in b/units/system-update-cleanup.service.in
index dc524da7a3..51399f1c07 100644
--- a/units/system-update-cleanup.service.in
+++ b/units/system-update-cleanup.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/system-update.target b/units/system-update.target
index b95639a876..c46bfe754a 100644
--- a/units/system-update.target
+++ b/units/system-update.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/system.slice b/units/system.slice
index 8281fe58f6..a4d5edfae8 100644
--- a/units/system.slice
+++ b/units/system.slice
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-ask-password-console.path b/units/systemd-ask-password-console.path
index 7899ae788f..d686ca634c 100644
--- a/units/systemd-ask-password-console.path
+++ b/units/systemd-ask-password-console.path
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-ask-password-console.service.in b/units/systemd-ask-password-console.service.in
index adaa60da87..6923d68df0 100644
--- a/units/systemd-ask-password-console.service.in
+++ b/units/systemd-ask-password-console.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-ask-password-wall.path b/units/systemd-ask-password-wall.path
index a3ca617256..5a356b97d0 100644
--- a/units/systemd-ask-password-wall.path
+++ b/units/systemd-ask-password-wall.path
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-ask-password-wall.service.in b/units/systemd-ask-password-wall.service.in
index be380023a7..1e4808b6d5 100644
--- a/units/systemd-ask-password-wall.service.in
+++ b/units/systemd-ask-password-wall.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-backlight@.service.in b/units/systemd-backlight@.service.in
index 9aa0c7498d..d3022856f2 100644
--- a/units/systemd-backlight@.service.in
+++ b/units/systemd-backlight@.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-binfmt.service.in b/units/systemd-binfmt.service.in
index d53073ee61..df9396d895 100644
--- a/units/systemd-binfmt.service.in
+++ b/units/systemd-binfmt.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-coredump.socket b/units/systemd-coredump.socket
index 4cb2460471..c9971b9199 100644
--- a/units/systemd-coredump.socket
+++ b/units/systemd-coredump.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-coredump@.service.in b/units/systemd-coredump@.service.in
index ef58f0cb3e..68fa55c807 100644
--- a/units/systemd-coredump@.service.in
+++ b/units/systemd-coredump@.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-exit.service.in b/units/systemd-exit.service.in
index 2dbfb36b41..2fb6ebd767 100644
--- a/units/systemd-exit.service.in
+++ b/units/systemd-exit.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-firstboot.service.in b/units/systemd-firstboot.service.in
index 405c6f3fd2..d4deba90b7 100644
--- a/units/systemd-firstboot.service.in
+++ b/units/systemd-firstboot.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-fsck-root.service.in b/units/systemd-fsck-root.service.in
index 3617abf04a..25aca1943f 100644
--- a/units/systemd-fsck-root.service.in
+++ b/units/systemd-fsck-root.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-fsck@.service.in b/units/systemd-fsck@.service.in
index 6ca6b07e9e..078edcc01a 100644
--- a/units/systemd-fsck@.service.in
+++ b/units/systemd-fsck@.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-halt.service.in b/units/systemd-halt.service.in
index d55d622c1c..09c1005829 100644
--- a/units/systemd-halt.service.in
+++ b/units/systemd-halt.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-hibernate-resume@.service.in b/units/systemd-hibernate-resume@.service.in
index 65e8eb83f1..d1b1aeeabb 100644
--- a/units/systemd-hibernate-resume@.service.in
+++ b/units/systemd-hibernate-resume@.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-hibernate.service.in b/units/systemd-hibernate.service.in
index 29d9b696a8..963b257ab8 100644
--- a/units/systemd-hibernate.service.in
+++ b/units/systemd-hibernate.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-hostnamed.service.in b/units/systemd-hostnamed.service.in
index cfee2cbbf1..993134f3d6 100644
--- a/units/systemd-hostnamed.service.in
+++ b/units/systemd-hostnamed.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-hwdb-update.service.in b/units/systemd-hwdb-update.service.in
index 7135cff3d9..259fe0de8b 100644
--- a/units/systemd-hwdb-update.service.in
+++ b/units/systemd-hwdb-update.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-hybrid-sleep.service.in b/units/systemd-hybrid-sleep.service.in
index 914b686c36..466ade974c 100644
--- a/units/systemd-hybrid-sleep.service.in
+++ b/units/systemd-hybrid-sleep.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-importd.service.in b/units/systemd-importd.service.in
index 695a5f21cb..8e93c2d524 100644
--- a/units/systemd-importd.service.in
+++ b/units/systemd-importd.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-initctl.service.in b/units/systemd-initctl.service.in
index 5505309e92..6cfed3da11 100644
--- a/units/systemd-initctl.service.in
+++ b/units/systemd-initctl.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-initctl.socket b/units/systemd-initctl.socket
index f628c2e867..61f877ba7d 100644
--- a/units/systemd-initctl.socket
+++ b/units/systemd-initctl.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-catalog-update.service.in b/units/systemd-journal-catalog-update.service.in
index 276f052b1a..6a7bf006cd 100644
--- a/units/systemd-journal-catalog-update.service.in
+++ b/units/systemd-journal-catalog-update.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-flush.service.in b/units/systemd-journal-flush.service.in
index a0a2e3fdb4..439f5f3f76 100644
--- a/units/systemd-journal-flush.service.in
+++ b/units/systemd-journal-flush.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-gatewayd.service.in b/units/systemd-journal-gatewayd.service.in
index 44caa0e0b2..9768928c57 100644
--- a/units/systemd-journal-gatewayd.service.in
+++ b/units/systemd-journal-gatewayd.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-gatewayd.socket b/units/systemd-journal-gatewayd.socket
index 79d9b04210..7c3632b323 100644
--- a/units/systemd-journal-gatewayd.socket
+++ b/units/systemd-journal-gatewayd.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-remote.service.in b/units/systemd-journal-remote.service.in
index 92cec21c2f..a94265f215 100644
--- a/units/systemd-journal-remote.service.in
+++ b/units/systemd-journal-remote.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-remote.socket b/units/systemd-journal-remote.socket
index 076dcae8a3..48d0a656ba 100644
--- a/units/systemd-journal-remote.socket
+++ b/units/systemd-journal-remote.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journal-upload.service.in b/units/systemd-journal-upload.service.in
index b666ef3568..42da70f473 100644
--- a/units/systemd-journal-upload.service.in
+++ b/units/systemd-journal-upload.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journald-audit.socket b/units/systemd-journald-audit.socket
index 541f2cf38d..cb8b774963 100644
--- a/units/systemd-journald-audit.socket
+++ b/units/systemd-journald-audit.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journald-dev-log.socket b/units/systemd-journald-dev-log.socket
index ffd44bb507..80ad6ac845 100644
--- a/units/systemd-journald-dev-log.socket
+++ b/units/systemd-journald-dev-log.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journald.service.in b/units/systemd-journald.service.in
index a747fe3f1f..df76fe4226 100644
--- a/units/systemd-journald.service.in
+++ b/units/systemd-journald.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-journald.socket b/units/systemd-journald.socket
index 71737014ca..c95ae5ab64 100644
--- a/units/systemd-journald.socket
+++ b/units/systemd-journald.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-kexec.service.in b/units/systemd-kexec.service.in
index 61303f917f..1201b23289 100644
--- a/units/systemd-kexec.service.in
+++ b/units/systemd-kexec.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-localed.service.in b/units/systemd-localed.service.in
index 5dd8b18894..ba8a08f3b4 100644
--- a/units/systemd-localed.service.in
+++ b/units/systemd-localed.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-logind.service.in b/units/systemd-logind.service.in
index de380a27d3..968b92a45c 100644
--- a/units/systemd-logind.service.in
+++ b/units/systemd-logind.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-machine-id-commit.service.in b/units/systemd-machine-id-commit.service.in
index 1f3f5da0f3..4f348730ee 100644
--- a/units/systemd-machine-id-commit.service.in
+++ b/units/systemd-machine-id-commit.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-machined.service.in b/units/systemd-machined.service.in
index 03b9bf5c0d..f9e789db42 100644
--- a/units/systemd-machined.service.in
+++ b/units/systemd-machined.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-modules-load.service.in b/units/systemd-modules-load.service.in
index 9de6d31349..26abe21d1b 100644
--- a/units/systemd-modules-load.service.in
+++ b/units/systemd-modules-load.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-networkd-wait-online.service.in b/units/systemd-networkd-wait-online.service.in
index 89ca865b55..7666e16669 100644
--- a/units/systemd-networkd-wait-online.service.in
+++ b/units/systemd-networkd-wait-online.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-networkd.service.in b/units/systemd-networkd.service.in
index 932dd63964..63ee735415 100644
--- a/units/systemd-networkd.service.in
+++ b/units/systemd-networkd.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-networkd.socket b/units/systemd-networkd.socket
index 9e4e9dd338..113306607b 100644
--- a/units/systemd-networkd.socket
+++ b/units/systemd-networkd.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-nspawn@.service.in b/units/systemd-nspawn@.service.in
index 9893ae2b36..3d3590751f 100644
--- a/units/systemd-nspawn@.service.in
+++ b/units/systemd-nspawn@.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-poweroff.service.in b/units/systemd-poweroff.service.in
index 3630719733..e9fd655508 100644
--- a/units/systemd-poweroff.service.in
+++ b/units/systemd-poweroff.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-quotacheck.service.in b/units/systemd-quotacheck.service.in
index 6b1999aa51..244da0a307 100644
--- a/units/systemd-quotacheck.service.in
+++ b/units/systemd-quotacheck.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-random-seed.service.in b/units/systemd-random-seed.service.in
index b244a8ce43..8903ee896c 100644
--- a/units/systemd-random-seed.service.in
+++ b/units/systemd-random-seed.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-reboot.service.in b/units/systemd-reboot.service.in
index d99bd3e701..4763ccfdca 100644
--- a/units/systemd-reboot.service.in
+++ b/units/systemd-reboot.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-remount-fs.service.in b/units/systemd-remount-fs.service.in
index 29d0674ab3..2e5b75ec03 100644
--- a/units/systemd-remount-fs.service.in
+++ b/units/systemd-remount-fs.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-resolved.service.in b/units/systemd-resolved.service.in
index cda83ee966..8059aa7b62 100644
--- a/units/systemd-resolved.service.in
+++ b/units/systemd-resolved.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-rfkill.service.in b/units/systemd-rfkill.service.in
index 5cdd747d22..4b68f0b5a7 100644
--- a/units/systemd-rfkill.service.in
+++ b/units/systemd-rfkill.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-rfkill.socket b/units/systemd-rfkill.socket
index 20ae2f8adb..c8e9f71bf6 100644
--- a/units/systemd-rfkill.socket
+++ b/units/systemd-rfkill.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-suspend.service.in b/units/systemd-suspend.service.in
index 3a702d2e22..11ed383ba9 100644
--- a/units/systemd-suspend.service.in
+++ b/units/systemd-suspend.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-sysctl.service.in b/units/systemd-sysctl.service.in
index 980f611df2..5b0f7f9df4 100644
--- a/units/systemd-sysctl.service.in
+++ b/units/systemd-sysctl.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-sysusers.service.in b/units/systemd-sysusers.service.in
index 4d8309ab6b..4d11bbb762 100644
--- a/units/systemd-sysusers.service.in
+++ b/units/systemd-sysusers.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-timedated.service.in b/units/systemd-timedated.service.in
index 97130e93c3..cf13e40ced 100644
--- a/units/systemd-timedated.service.in
+++ b/units/systemd-timedated.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-timesyncd.service.in b/units/systemd-timesyncd.service.in
index ed4bc8e552..d3bc4e9841 100644
--- a/units/systemd-timesyncd.service.in
+++ b/units/systemd-timesyncd.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-tmpfiles-clean.service.in b/units/systemd-tmpfiles-clean.service.in
index 133c8c94c4..5963cf27fb 100644
--- a/units/systemd-tmpfiles-clean.service.in
+++ b/units/systemd-tmpfiles-clean.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-tmpfiles-clean.timer b/units/systemd-tmpfiles-clean.timer
index 9975dcfaca..3e3017820f 100644
--- a/units/systemd-tmpfiles-clean.timer
+++ b/units/systemd-tmpfiles-clean.timer
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-tmpfiles-setup-dev.service.in b/units/systemd-tmpfiles-setup-dev.service.in
index 0123a030e4..29b4f0bec0 100644
--- a/units/systemd-tmpfiles-setup-dev.service.in
+++ b/units/systemd-tmpfiles-setup-dev.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-tmpfiles-setup.service.in b/units/systemd-tmpfiles-setup.service.in
index e895cda0e6..ba24b8d823 100644
--- a/units/systemd-tmpfiles-setup.service.in
+++ b/units/systemd-tmpfiles-setup.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-udev-settle.service.in b/units/systemd-udev-settle.service.in
index 0817803a39..c9e1c91852 100644
--- a/units/systemd-udev-settle.service.in
+++ b/units/systemd-udev-settle.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-udev-trigger.service.in b/units/systemd-udev-trigger.service.in
index 0c33909cee..3cdde94446 100644
--- a/units/systemd-udev-trigger.service.in
+++ b/units/systemd-udev-trigger.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-udevd-control.socket b/units/systemd-udevd-control.socket
index 46f704ed79..5b8628c754 100644
--- a/units/systemd-udevd-control.socket
+++ b/units/systemd-udevd-control.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-udevd-kernel.socket b/units/systemd-udevd-kernel.socket
index 1a16206951..b2a65f1a84 100644
--- a/units/systemd-udevd-kernel.socket
+++ b/units/systemd-udevd-kernel.socket
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-udevd.service.in b/units/systemd-udevd.service.in
index 03909f5d7f..8557522e7b 100644
--- a/units/systemd-udevd.service.in
+++ b/units/systemd-udevd.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-update-done.service.in b/units/systemd-update-done.service.in
index ec7d906392..6e82ec7474 100644
--- a/units/systemd-update-done.service.in
+++ b/units/systemd-update-done.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-update-utmp-runlevel.service.in b/units/systemd-update-utmp-runlevel.service.in
index 99783e2e69..642d926a31 100644
--- a/units/systemd-update-utmp-runlevel.service.in
+++ b/units/systemd-update-utmp-runlevel.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-update-utmp.service.in b/units/systemd-update-utmp.service.in
index 163eccd91f..b9a668faeb 100644
--- a/units/systemd-update-utmp.service.in
+++ b/units/systemd-update-utmp.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-user-sessions.service.in b/units/systemd-user-sessions.service.in
index b4ea5a134b..6d585eb0a1 100644
--- a/units/systemd-user-sessions.service.in
+++ b/units/systemd-user-sessions.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-vconsole-setup.service.in b/units/systemd-vconsole-setup.service.in
index 8bb75c6a4f..f4178f495a 100644
--- a/units/systemd-vconsole-setup.service.in
+++ b/units/systemd-vconsole-setup.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/systemd-volatile-root.service.in b/units/systemd-volatile-root.service.in
index c5a4ca3c27..8f228bce9f 100644
--- a/units/systemd-volatile-root.service.in
+++ b/units/systemd-volatile-root.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/time-sync.target b/units/time-sync.target
index debee74109..1533c7c33c 100644
--- a/units/time-sync.target
+++ b/units/time-sync.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/timers.target b/units/timers.target
index 251fa68065..b1aa8c797c 100644
--- a/units/timers.target
+++ b/units/timers.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/tmp.mount b/units/tmp.mount
index 3a333d22ec..742d86385c 100644
--- a/units/tmp.mount
+++ b/units/tmp.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/umount.target b/units/umount.target
index 39668d85d2..54fa5aebf2 100644
--- a/units/umount.target
+++ b/units/umount.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user.slice b/units/user.slice
index 9fa6284c12..3f2d98fcdf 100644
--- a/units/user.slice
+++ b/units/user.slice
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user/basic.target b/units/user/basic.target
index afc6e9360a..1ae8275c80 100644
--- a/units/user/basic.target
+++ b/units/user/basic.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user/default.target b/units/user/default.target
index 9853c33b40..da319ce675 100644
--- a/units/user/default.target
+++ b/units/user/default.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user/exit.target b/units/user/exit.target
index e8148b78c7..11a6f8eabe 100644
--- a/units/user/exit.target
+++ b/units/user/exit.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user/graphical-session-pre.target b/units/user/graphical-session-pre.target
index 86d15aff33..3adfc5aaa4 100644
--- a/units/user/graphical-session-pre.target
+++ b/units/user/graphical-session-pre.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user/graphical-session.target b/units/user/graphical-session.target
index 00d16230b7..a38eaabbc4 100644
--- a/units/user/graphical-session.target
+++ b/units/user/graphical-session.target
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user/meson.build b/units/user/meson.build
index b507144c05..fbe6e3fb13 100644
--- a/units/user/meson.build
+++ b/units/user/meson.build
@@ -1,3 +1,20 @@
+# SPDX-License-Identifier: LGPL-2.1+
+#
+# Copyright 2017 Zbigniew Jędrzejewski-Szmek
+#
+# 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.
+#
+# systemd is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with systemd; If not, see <http://www.gnu.org/licenses/>.
+
 units = [
         'basic.target',
         'bluetooth.target',
diff --git a/units/user/systemd-exit.service.in b/units/user/systemd-exit.service.in
index 987fab8120..9ce6f1c2ac 100644
--- a/units/user/systemd-exit.service.in
+++ b/units/user/systemd-exit.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/user@.service.in b/units/user@.service.in
index 1beb901db8..1cf619a1ae 100644
--- a/units/user@.service.in
+++ b/units/user@.service.in
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it
diff --git a/units/var-lib-machines.mount b/units/var-lib-machines.mount
index 7eba68f214..5da0c6fa32 100644
--- a/units/var-lib-machines.mount
+++ b/units/var-lib-machines.mount
@@ -1,3 +1,5 @@
+#  SPDX-License-Identifier: LGPL-2.1+
+#
 #  This file is part of systemd.
 #
 #  systemd is free software; you can redistribute it and/or modify it