Merge pull request #20886 from bluca/license

SPDX: add README and license texts

LICENSES/BSD-2-Clause.txt

@@ -0,0 +1,9 @@
+Copyright (c) <year> <owner> All rights reserved.
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LICENSES/CC0-1.0.txt

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LICENSES/LGPL-2.0-or-later.txt

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LICENSES/Linux-syscall-note.txt

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+   NOTE! This copyright does *not* cover user programs that use kernel
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+			Linus Torvalds

LICENSES/MIT.txt

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+MIT License
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LICENSES/README.md

@@ -0,0 +1,61 @@
+# systemd Project Licensing
+
+## Main License
+
+The systemd project uses single-line references to Unique Licese Identifiers as
+defined by the Linux Foundation's SPDX project (https://spdx.org/). The line in
+each individual source file identifies the license applicable to that file.
+
+The current set of valid, predefined SPDX identifiers can be found on the SPDX
+License List at https://spdx.org/licenses/.
+
+The 'LICENSES/' directory contains all the licenses used by the sources included in
+the systemd project source tree.
+
+Unless otherwise noted, the systemd project sources are licensed under the terms
+and conditions of the **GNU Lesser General Public License v2.1 or later**.
+
+New sources that cannot be distributed under LGPL-2.1-or-later will no longer
+be accepted for inclusion in the systemd project to maintain license uniformity.
+
+## Other Licenses
+
+The following exceptions apply:
+
+ * some udev sources under src/udev/ are licensed under **GPL-2.0-or-later**, so the
+   udev binaries as a whole are also distributed under **GPL-2.0-or-later**.
+ * the header files contained in src/basic/linux/ and src/shared/linux/ are copied
+   verbatim from the Linux kernel source tree and are licensed under **GPL-2.0 WITH
+   Linux-syscall-note** and are used within the scope of the Linux-syscall-note
+   exception provisions
+ * the src/shared/initreq.h header is licensed under original license,
+   **LGPL-2.0-or-later**.
+ * the src/shared/linux/bpf_insn.h header is copied from the Linux kernel
+   source tree and is licensed under either **BSD-2-Clause** or **GPL-2.0-only**,
+   and thus is included in the systemd build under the BSD-2-Clause license.
+ * The src/basic/linux/wireguard.h header is copied from the Linux kernel
+   source tree and is licensed under either **MIT** or **GPL-2.0 WITH Linux-syscall-note**,
+   and thus is included in the systemd build under the MIT license.
+ * the following sources are licensed under the **MIT** license (in case of our
+   scripts, to facilitate copying and reuse of those helpers to other projects):
+   - hwdb.d/parse_hwdb.py
+   - man/glib-event-glue.c
+   - src/basic/linux/batman_adv.h
+   - src/basic/sparse-endian.h
+   - tools/catalog-report.py
+ * the following sources are licensed under the **CC0-1.0** license:
+   - src/basic/siphash24.c
+   - src/basic/siphash24.h
+   - src/systemctl/systemd-sysv-install.SKELETON
+   - tools/check-includes.pl
+   - all examples, code and scripts, under man/ except where otherwise noted
+ * the following sources are under **Public Domain** (LicenseRef-murmurhash2-public-domain):
+   - src/basic/MurmurHash2.c
+   - src/basic/MurmurHash2.h
+ * the following sources are under **Public Domain** (LicenseRef-lookup3-public-domain):
+   - src/libsystemd/sd-journal/lookup3.c
+   - src/libsystemd/sd-journal/lookup3.h
+ * the tools/chromiumos/gen_autosuspend_rules.py script is licensed under the
+   **BSD-3-Clause** license.
+ * any files under test/ without an explicit license we assume non-copyrightable
+   (eg: computer-generated fuzzer data)

LICENSES/lookup3-public-domain.txt

@@ -0,0 +1 @@
+lookup3.c, by Bob Jenkins, May 2006, Public Domain.

LICENSES/murmurhash2-public-domain.txt

@@ -0,0 +1,2 @@
+MurmurHash2 was written by Austin Appleby, and is placed in the public
+domain. The author hereby disclaims copyright to this source code.

README

@@ -25,12 +25,7 @@ AUTHOR:
         ...and many others
 
 LICENSE:
-        LGPLv2.1+ for all code
-        - except src/basic/MurmurHash2.c which is Public Domain
-        - except src/basic/siphash24.c which is CC0 Public Domain
-        - except src/journal/lookup3.c which is Public Domain
-        - except src/udev/* which is (currently still) GPLv2, GPLv2+
-        - except tools/chromiumos/* which is BSD-style
+        LGPL-2.1-or-later for all code, exceptions noted in LICENSES/README.md
 
 REQUIREMENTS:
         Linux kernel >= 3.13

docs/CONTRIBUTING.md

@@ -37,7 +37,7 @@ See [reporting of security vulnerabilities](SECURITY.md).
 * Make sure to run the test suite locally, before posting your PR. We use a CI system, meaning we don't even look at your PR, if the build and tests don't pass.
 * If you need to update the code in an existing PR, force-push into the same branch, overriding old commits with new versions.
 * After you have pushed a new version, add a comment about the new version (no notification is sent just for the commits, so it's easy to miss the update without an explicit comment). If you are a member of the systemd project on GitHub, remove the `reviewed/needs-rework` label.
-* If you are copying existing code from another source (eg: a compat header), please make sure the license is compatible with GPL-2.0-or-later.
+* If you are copying existing code from another source (eg: a compat header), please make sure the license is compatible with LGPL-2.1-or-later. If the license is not LGPL-2.1-or-later, please add a note to LICENSES/README.md.
 
 ## Final Words
 

man/.dir-locals.el

@@ -1,3 +1,4 @@
+; SPDX-License-Identifier: LGPL-2.1-or-later
 ; special .c mode with reduced indentation for man pages
 ((c-mode . ((fill-column . 80)
             (c-basic-offset . 2)

man/50-xdg-data-dirs.sh

@@ -1,4 +1,5 @@
 #!/bin/bash
+# SPDX-License-Identifier: CC0-1.0
 
 # set the default value
 XDG_DATA_DIRS="${XDG_DATA_DIRS:-/usr/local/share/:/usr/share}"

man/90-rearrange-path.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+# SPDX-License-Identifier: CC0-1.0
 
 """
 

man/check-os-release.py

@@ -1,4 +1,5 @@
 #!/usr/bin/python
+# SPDX-License-Identifier: CC0-1.0
 
 import ast
 import re

man/check-os-release.sh

@@ -1,4 +1,5 @@
 #!/bin/sh -eu
+# SPDX-License-Identifier: CC0-1.0
 
 test -e /etc/os-release && os_release='/etc/os-release' || os_release='/usr/lib/os-release'
 . "${os_release}"

man/fido2-crypttab.sh

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: CC0-1.0
+
 # Enroll the security token in the LUKS2 volume. Replace /dev/sdXn by the
 # partition to use (e.g. /dev/sda1).
 sudo systemd-cryptenroll --fido2-device=auto /dev/sdXn

man/html.in

@@ -1,4 +1,5 @@
 #!/bin/sh
+# SPDX-License-Identifier: LGPL-2.1-or-later
 set -e
 
 if [ -z "$1" ]; then

man/hwdb-usb-device.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <stdint.h>
 #include <sd-hwdb.h>

man/id128-app-specific.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <systemd/sd-id128.h>
 

man/inotify-watch-tmp.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <string.h>
 #include <sys/inotify.h>

man/journal-iterate-poll.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <poll.h>
 #include <time.h>
 #include <systemd/sd-journal.h>

man/journal-iterate-unique.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <string.h>
 #include <systemd/sd-journal.h>

man/journal-iterate-wait.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <string.h>
 #include <systemd/sd-journal.h>

man/man.in

@@ -1,4 +1,6 @@
 #!/bin/sh
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
 set -e
 
 if [ -z "$1" ]; then

man/path-documents.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <sd-path.h>

man/print-unit-path.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 #include <string.h>
 #include <unistd.h>

man/repart.d.xml

@@ -1,6 +1,8 @@
 <?xml version='1.0'?>
 <!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
+
 <refentry id="repart.d" conditional='ENABLE_REPART'
           xmlns:xi="http://www.w3.org/2001/XInclude">
 

man/sd-bus-container-append.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <systemd/sd-bus.h>
 
 int append_strings_to_message(sd_bus_message *m, const char *const *arr) {

man/sd-bus-container-read.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <stdio.h>
 
 #include <systemd/sd-bus.h>

man/send-unit-files-changed.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <systemd/sd-bus.h>
 #define _cleanup_(f) __attribute__((cleanup(f)))
 

man/tpm2-crypttab.sh

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: CC0-1.0
+
 # Enroll the TPM2 security chip in the LUKS2 volume, and bind it to PCR 7
 # only. Replace /dev/sdXn by the partition to use (e.g. /dev/sda1).
 sudo systemd-cryptenroll --tpm2-device=auto --tpm2-pcrs=7 /dev/sdXn

man/vtable-example.c

@@ -1,3 +1,5 @@
+/* SPDX-License-Identifier: CC0-1.0 */
+
 #include <errno.h>
 #include <stdbool.h>
 #include <stddef.h>

man/vtable-example.xml

@@ -1,5 +1,6 @@
 <!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
 "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
+<!-- SPDX-License-Identifier: LGPL-2.1-or-later -->
 <node>
  <interface name="org.freedesktop.DBus.Peer">
   <method name="Ping"/>

man/yubikey-crypttab.sh

@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: CC0-1.0
+
 # Destroy any old key on the Yubikey (careful!)
 ykman piv reset
 

meson.build

@@ -3652,6 +3652,9 @@ install_data('LICENSE.GPL2',
              'docs/GVARIANT-SERIALIZATION.md',
              install_dir : docdir)
 
+install_subdir('LICENSES',
+               install_dir : docdir)
+
 meson.add_install_script('sh', '-c', mkdir_p.format(systemdstatedir))
 meson.add_install_script('sh', '-c', 'touch $DESTDIR@0@'.format(prefixdir))
 

src/core/bpf-foreign.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "bpf-foreign.h"
 #include "bpf-program.h"

src/core/bpf-foreign.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #pragma once
 

src/core/bpf-socket-bind.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #if BPF_FRAMEWORK
 #include <bpf/bpf.h>

src/core/bpf-socket-bind.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include "fdset.h"

src/core/bpf/restrict_ifaces/meson.build

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: LGPL-2.1+
+# SPDX-License-Identifier: LGPL-2.1-or-later
 
 if conf.get('BPF_FRAMEWORK') == 1
         restrict_ifaces_skel_h = custom_target(

src/core/bpf/socket_bind/meson.build

@@ -1,4 +1,4 @@
-# SPDX-License-Identifier: LGPL-2.1+
+# SPDX-License-Identifier: LGPL-2.1-or-later
 
 if conf.get('BPF_FRAMEWORK') == 1
         socket_bind_skel_h = custom_target(

src/core/restrict-ifaces.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "fd-util.h"
 #include "restrict-ifaces.h"

src/core/restrict-ifaces.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include "fdset.h"

src/login/logind-polkit.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "bus-polkit.h"
 #include "logind-polkit.h"

src/login/logind-polkit.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 #include "sd-bus.h"

src/network/networkd-dhcp-server-static-lease.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "alloc-util.h"
 #include "ether-addr-util.h"

src/network/networkd-dhcp-server-static-lease.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #pragma once
 

src/resolve/resolved-socket-graveyard.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "resolved-socket-graveyard.h"
 

src/resolve/resolved-socket-graveyard.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 #pragma once
 
 typedef struct SocketGraveyard SocketGraveyard;

src/shared/bpf-link.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include "bpf-dlopen.h"
 #include "bpf-link.h"

src/shared/bpf-link.h

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #pragma once
 

src/test/test-bpf-foreign-programs.c

@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: LGPL-2.1+ */
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
 
 #include <fcntl.h>
 #include <linux/bpf_insn.h>

tools/build-bpf-skel.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# SPDX-License-Identifier: LGPL-2.1+
+# SPDX-License-Identifier: LGPL-2.1-or-later
 
 import argparse
 import logging

tools/meson-render-jinja2.py

@@ -1,5 +1,5 @@
 #!/usr/bin/env python3
-# SPDX-License-Identifier: LGPL-2.1+
+# SPDX-License-Identifier: LGPL-2.1-or-later
 
 import jinja2
 import re