license: fix and add SPDX license identifiers and drop license comments

This also fixes a few wrong SPDX license identifiers, where the original
license comment indicates GPL-2.0-only.

This is not done manually, but by running the following script:

---

    #!/bin/bash

    # Tool to drop license comments, adding SPDX license identifiers, while preserving
    # copyright comments. The point is not to manually do this task, but perform some
    # hacked up string replacement.

    _cp() {
        /bin/cp "$@"
    }

    _cat() {
        /bin/cat "$@"
    }

    in_file() {
        local T=$(mktemp)

        _cp -f "$1" "$T"
        _cat "$T"
        rm -f "$T"
    }

    out_file() {
        local T=$(mktemp)

        _cat - > "$T"
        _cp -f "$T" "$1"
        rm -f "$T"
    }

    join() {
        _cat "$@" | awk '{ printf("%s#x#", $0)}'
    }

    unjoin() {
        _cat - | sed 's/#x#/\n/g'
    }

    files_all() {
        git ls-files |
        grep -v '\.png$' |
        grep -v '^include/linux-private/'
    }

    adjust() {
         NEWLINES='\(#x#\)\+'
         COPYRIGHTS='\(\( \* Copyright (c) 20..\(-20..\|, 20..\)\? [^#]\+#x#\)\+\( \*#x# \* \(Stolen[^#]*\|Based on [^#]*\)#x#\)\?\)'
         _cat - |
         \
         sed '1s%^\(/\* SPDX-License-Identifier: LGPL-2.1-only \*/\|\)#x#/\*#x# \* [^#]*#x# \*#x# \*[	 ]\+This library is free software; you can redistribute it and/or#x# \*[	 ]\+modify it under the terms of the GNU Lesser General Public#x# \*[	 ]\+License as published by the Free Software Foundation version 2.1#x# \*[	 ]\+of the License.#x# \*#x#'"$COPYRIGHTS"' \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: LGPL-2.1-only \*/#x#/*#x#\2 */#x##x#%' |
         \
         sed '1s%^/\*#x# \* [^#]*#x# \*#x# \*[	 ]\+This library is free software; you can redistribute it and/or#x# \*[	 ]\+modify it under the terms of the GNU Lesser General Public#x# \*[	 ]\+License as published by the Free Software Foundation version 2.1#x# \*[	 ]\+of the License.#x# \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: LGPL-2.1-only \*/#x##x#%' |
         \
         sed '1s%^\(\)/\*#x# \* [^#]*#x# \*#x# \*[	 ]\+This library is free software; you can redistribute it and/or#x# \*[	 ]\+modify it under the terms of the GNU Lesser General Public#x# \*[	 ]\+License as published by the Free Software Foundation version 2.1#x# \*[	 ]\+of the License.#x# \*#x#'"$COPYRIGHTS"' \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: LGPL-2.1-only \*/#x#/*#x#\2 */#x##x#%' |
         \
         sed '1s%^\(/\* SPDX-License-Identifier: LGPL-2.1-only \*/\|\)#x#/\*#x# \* [^#]*#x# \*#x# \*[	 ]\+This library is free software; you can redistribute it and/or#x# \*[	 ]\+modify it under the terms of the GNU General Public License as#x# \*[	 ]\+published by the Free Software Foundation version 2 of the License.#x# \*#x#'"$COPYRIGHTS"' \*/'"$NEWLINES"'%/\* SPDX-License-Identifier: GPL-2.0-only \*/#x#/*#x#\2 */#x##x#%'
    }

    FILES=( $(files_all) )

    for f in "${FILES[@]}"; do
       echo "processing \"$f\"..."
       in_file "$f" | join | adjust | unjoin | out_file "$f"
    done

59 files changed, 5 insertions, 414 deletions

diff --git a/src/genl-ctrl-list.c b/src/genl-ctrl-list.c
index d3279a83..62bed3cf 100644
--- a/src/genl-ctrl-list.c
+++ b/src/genl-ctrl-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/genl-ctrl-list.c	List Generic Netlink Families
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2012 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/idiag-socket-details.c b/src/idiag-socket-details.c
index 2d7dd4bd..6f03627c 100644
--- a/src/idiag-socket-details.c
+++ b/src/idiag-socket-details.c
@@ -1,11 +1,5 @@
-/* SPDX-License-Identifier: LGPL-2.1-only */
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * src/idiag-socket-details.c     List socket details
- *
- *	This library is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation version 2 of the License.
- *
  * Copyright (c) 2013 Sassano Systems LLC <joe@sassanosystems.com>
  */
 
diff --git a/src/lib/addr.c b/src/lib/addr.c
index 5d39f7cb..a79e9b4e 100644
--- a/src/lib/addr.c
+++ b/src/lib/addr.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/addr.c     Address Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/class.c b/src/lib/class.c
index 162e5427..d7312c38 100644
--- a/src/lib/class.c
+++ b/src/lib/class.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/class.c     CLI Class Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/cls.c b/src/lib/cls.c
index a5ac9251..d8fd1a8b 100644
--- a/src/lib/cls.c
+++ b/src/lib/cls.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/cls.c     	CLI Classifier Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010-2011 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/ct.c b/src/lib/ct.c
index e6732ae0..c00c0fbd 100644
--- a/src/lib/ct.c
+++ b/src/lib/ct.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/ct.c		CLI Conntrack Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/exp.c b/src/lib/exp.c
index 732843f9..48d4ea01 100644
--- a/src/lib/exp.c
+++ b/src/lib/exp.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/exp.c		CLI Expectation Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2012 Rich Fought <rich.fought@watchguard.com>
  */
diff --git a/src/lib/link.c b/src/lib/link.c
index ae367e4a..d1c3e4b0 100644
--- a/src/lib/link.c
+++ b/src/lib/link.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/link.c     CLI Link Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/neigh.c b/src/lib/neigh.c
index 75862c7b..5b44f478 100644
--- a/src/lib/neigh.c
+++ b/src/lib/neigh.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/neigh.c     CLI Neighbour Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/qdisc.c b/src/lib/qdisc.c
index ea047c2f..beb83cc4 100644
--- a/src/lib/qdisc.c
+++ b/src/lib/qdisc.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/qdisc.c     CLI QDisc Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2011 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/route.c b/src/lib/route.c
index 9d0fbe83..7297a2f6 100644
--- a/src/lib/route.c
+++ b/src/lib/route.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/route.c     CLI Route Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/rule.c b/src/lib/rule.c
index 213eca2a..6ef93214 100644
--- a/src/lib/rule.c
+++ b/src/lib/rule.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/rule.c     CLI Routing Rule Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/tc.c b/src/lib/tc.c
index 5d3a2035..ba3de180 100644
--- a/src/lib/tc.c
+++ b/src/lib/tc.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/lib/tc.c     CLI Traffic Control Helpers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/lib/utils.c b/src/lib/utils.c
index 3aa2a90c..36fb0292 100644
--- a/src/lib/utils.c
+++ b/src/lib/utils.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/utils.c		Utilities
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nf-ct-add.c b/src/nf-ct-add.c
index eec9b869..632acd90 100644
--- a/src/nf-ct-add.c
+++ b/src/nf-ct-add.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-ct-add.c     Add Conntrack Entry
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-ct-events.c b/src/nf-ct-events.c
index 87f2da93..68f9ac0f 100644
--- a/src/nf-ct-events.c
+++ b/src/nf-ct-events.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-ct-events.c	  Listen on Conntrack Events
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2018 Avast software
  */
 
diff --git a/src/nf-ct-list.c b/src/nf-ct-list.c
index c512027b..692c24b1 100644
--- a/src/nf-ct-list.c
+++ b/src/nf-ct-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-ct-list.c     List Conntrack Entries
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-exp-add.c b/src/nf-exp-add.c
index 49e36f63..ae745286 100644
--- a/src/nf-exp-add.c
+++ b/src/nf-exp-add.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-exp-add.c     Create an expectation
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-exp-delete.c b/src/nf-exp-delete.c
index c6e478c2..9d1eea94 100644
--- a/src/nf-exp-delete.c
+++ b/src/nf-exp-delete.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-exp-delete.c     Delete an expectation
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-exp-list.c b/src/nf-exp-list.c
index 0993a98f..25fd51f1 100644
--- a/src/nf-exp-list.c
+++ b/src/nf-exp-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-exp-list.c     List Expectation Entries
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-log.c b/src/nf-log.c
index c8a40bfa..c9ad560e 100644
--- a/src/nf-log.c
+++ b/src/nf-log.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-log.c     Monitor netfilter log events
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-monitor.c b/src/nf-monitor.c
index 4afbdb2b..1f67289f 100644
--- a/src/nf-monitor.c
+++ b/src/nf-monitor.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-monitor.c     Monitor netfilter events
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
  * Copyright (c) 2007 Philip Craig <philipc@snapgear.com>
  * Copyright (c) 2007 Secure Computing Corporation
diff --git a/src/nf-queue.c b/src/nf-queue.c
index f46abc26..ec15f63b 100644
--- a/src/nf-queue.c
+++ b/src/nf-queue.c
@@ -1,17 +1,9 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nf-queue.c     Monitor netfilter queue events
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2007, 2008 Patrick McHardy <kaber@trash.net>
  * Copyright (c) 2010  Karl Hiramoto <karl@hiramoto.org>
  */
 
-
 #include <netlink/cli/utils.h>
 #include <netlink/cli/link.h>
 #include <netinet/in.h>
diff --git a/src/nl-addr-add.c b/src/nl-addr-add.c
index e6ebefe1..3560f4d1 100644
--- a/src/nl-addr-add.c
+++ b/src/nl-addr-add.c
@@ -1,11 +1,5 @@
-/* SPDX-License-Identifier: LGPL-2.1-only */
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * src/nl-addr-add.c     Add addresses
- *
- *	This library is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation version 2 of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-addr-delete.c b/src/nl-addr-delete.c
index 9d017f42..a8887ac0 100644
--- a/src/nl-addr-delete.c
+++ b/src/nl-addr-delete.c
@@ -1,11 +1,5 @@
-/* SPDX-License-Identifier: LGPL-2.1-only */
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * src/nl-addr-delete.c     Delete addresses
- *
- *	This library is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation version 2 of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-addr-list.c b/src/nl-addr-list.c
index c5258bd4..d80d862a 100644
--- a/src/nl-addr-list.c
+++ b/src/nl-addr-list.c
@@ -1,11 +1,5 @@
-/* SPDX-License-Identifier: LGPL-2.1-only */
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * src/nl-addr-list.c     List addresses
- *
- *	This library is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation version 2 of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-class-add.c b/src/nl-class-add.c
index a1ccf4e8..d3f92300 100644
--- a/src/nl-class-add.c
+++ b/src/nl-class-add.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-class-add.c     Add/Update/Replace Traffic Class
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-class-delete.c b/src/nl-class-delete.c
index 56278210..1747a65a 100644
--- a/src/nl-class-delete.c
+++ b/src/nl-class-delete.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-class-delete.c     Delete Traffic Classes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-class-list.c b/src/nl-class-list.c
index 0ce4ab24..ba8e154c 100644
--- a/src/nl-class-list.c
+++ b/src/nl-class-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-class-list.c     List Traffic Classes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-classid-lookup.c b/src/nl-classid-lookup.c
index 4ddc8429..7b82c372 100644
--- a/src/nl-classid-lookup.c
+++ b/src/nl-classid-lookup.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-classid-lookup.c     Lookup classid
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-cls-add.c b/src/nl-cls-add.c
index c2ad7173..a29beb78 100644
--- a/src/nl-cls-add.c
+++ b/src/nl-cls-add.c
@@ -1,11 +1,5 @@
-/* SPDX-License-Identifier: LGPL-2.1-only */
+/* SPDX-License-Identifier: GPL-2.0-only */
 /*
- * src/nl-cls-add.c     Add classifier
- *
- *	This library is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License as
- *	published by the Free Software Foundation version 2 of the License.
- *
  * Copyright (c) 2003-2011 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-cls-delete.c b/src/nl-cls-delete.c
index a2a93a72..20079a2f 100644
--- a/src/nl-cls-delete.c
+++ b/src/nl-cls-delete.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-cls-delete.c     Delete Classifier
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-cls-list.c b/src/nl-cls-list.c
index 5d4faa0f..65757d08 100644
--- a/src/nl-cls-list.c
+++ b/src/nl-cls-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-cls-list.c     	List classifiers
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2008-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-fib-lookup.c b/src/nl-fib-lookup.c
index a6496872..4239063e 100644
--- a/src/nl-fib-lookup.c
+++ b/src/nl-fib-lookup.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-fib-lookup.c		FIB Route Lookup
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-enslave.c b/src/nl-link-enslave.c
index 4e368c38..ba4817a2 100644
--- a/src/nl-link-enslave.c
+++ b/src/nl-link-enslave.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-enslave.c     Enslave a link
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2011 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-ifindex2name.c b/src/nl-link-ifindex2name.c
index 0cb3cbe2..05eb788f 100644
--- a/src/nl-link-ifindex2name.c
+++ b/src/nl-link-ifindex2name.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-ifindex2name.c     Transform a interface index to its name
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-list.c b/src/nl-link-list.c
index d3820762..e07bd43a 100644
--- a/src/nl-link-list.c
+++ b/src/nl-link-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-dump.c	Dump link attributes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-name2ifindex.c b/src/nl-link-name2ifindex.c
index d3e83998..3ff774e0 100644
--- a/src/nl-link-name2ifindex.c
+++ b/src/nl-link-name2ifindex.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-name2ifindex.c     Transform a interface name to its index
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2008 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-release.c b/src/nl-link-release.c
index abe8cdb7..1c869adf 100644
--- a/src/nl-link-release.c
+++ b/src/nl-link-release.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-release.c     release a link
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2011 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-set.c b/src/nl-link-set.c
index fc0f5a78..5b54da0b 100644
--- a/src/nl-link-set.c
+++ b/src/nl-link-set.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-set.c     Set link attributes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-link-stats.c b/src/nl-link-stats.c
index 85719c1c..d993f710 100644
--- a/src/nl-link-stats.c
+++ b/src/nl-link-stats.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-link-stats.c     Retrieve link statistics
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-list-caches.c b/src/nl-list-caches.c
index c59f95b1..966f13a3 100644
--- a/src/nl-list-caches.c
+++ b/src/nl-list-caches.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * nl-list-caches.c	List registered cache types
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-list-sockets.c b/src/nl-list-sockets.c
index e7d47038..b69b2c27 100644
--- a/src/nl-list-sockets.c
+++ b/src/nl-list-sockets.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * nl-list-sockets.c	Pretty-print /proc/net/netlink
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-monitor.c b/src/nl-monitor.c
index a6f21b4a..e3e55307 100644
--- a/src/nl-monitor.c
+++ b/src/nl-monitor.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-monitor.c     Monitor events
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-neigh-add.c b/src/nl-neigh-add.c
index 585639a0..cd6063ed 100644
--- a/src/nl-neigh-add.c
+++ b/src/nl-neigh-add.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/ nl-neigh-add.c     Add a neighbour
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-neigh-delete.c b/src/nl-neigh-delete.c
index 826c1c5c..6f1ffeff 100644
--- a/src/nl-neigh-delete.c
+++ b/src/nl-neigh-delete.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-neigh-delete.c     Delete a neighbour
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-neigh-list.c b/src/nl-neigh-list.c
index a9262083..2664c8fd 100644
--- a/src/nl-neigh-list.c
+++ b/src/nl-neigh-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-neigh-list.c      List Neighbours
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-neightbl-list.c b/src/nl-neightbl-list.c
index 10d7ed41..5a5b0a04 100644
--- a/src/nl-neightbl-list.c
+++ b/src/nl-neightbl-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-neightbl-list.c     Dump neighbour tables
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-pktloc-lookup.c b/src/nl-pktloc-lookup.c
index 8b1272cc..f888424d 100644
--- a/src/nl-pktloc-lookup.c
+++ b/src/nl-pktloc-lookup.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-pktloc-lookup.c     Lookup packet location alias
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-qdisc-add.c b/src/nl-qdisc-add.c
index 38903f3e..8cd317c3 100644
--- a/src/nl-qdisc-add.c
+++ b/src/nl-qdisc-add.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-qdisc-add.c     Add Queueing Discipline
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-qdisc-delete.c b/src/nl-qdisc-delete.c
index 7c5926b7..299fd48a 100644
--- a/src/nl-qdisc-delete.c
+++ b/src/nl-qdisc-delete.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-qdisc-delete.c     Delete Queuing Disciplines
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-qdisc-list.c b/src/nl-qdisc-list.c
index 6796ca52..d1825da0 100644
--- a/src/nl-qdisc-list.c
+++ b/src/nl-qdisc-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-qdisc-list.c     List Queueing Disciplines
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2010 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-route-add.c b/src/nl-route-add.c
index ed2c4e29..4e96ab01 100644
--- a/src/nl-route-add.c
+++ b/src/nl-route-add.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-route-add.c     Route addition utility
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-route-delete.c b/src/nl-route-delete.c
index 750b57f4..9b4366c4 100644
--- a/src/nl-route-delete.c
+++ b/src/nl-route-delete.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-route-delete.c     Delete Routes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-route-get.c b/src/nl-route-get.c
index 564fc166..b49ba4cb 100644
--- a/src/nl-route-get.c
+++ b/src/nl-route-get.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-route-get.c     Get Route Attributes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-route-list.c b/src/nl-route-list.c
index b6c4270c..1b293ed9 100644
--- a/src/nl-route-list.c
+++ b/src/nl-route-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-route-list.c     List route attributes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-rule-list.c b/src/nl-rule-list.c
index b923184f..fe87dfe0 100644
--- a/src/nl-rule-list.c
+++ b/src/nl-rule-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-rule-dump.c     Dump rule attributes
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-tctree-list.c b/src/nl-tctree-list.c
index 9e03038f..16f6f00d 100644
--- a/src/nl-tctree-list.c
+++ b/src/nl-tctree-list.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-tctree-list.c		List Traffic Control Tree
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */
 
diff --git a/src/nl-util-addr.c b/src/nl-util-addr.c
index 6a811661..de923023 100644
--- a/src/nl-util-addr.c
+++ b/src/nl-util-addr.c
@@ -1,12 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-only */
 /*
- * src/nl-util-addr.c     Address Helper
- *
- *	This library 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 version 2.1
- *	of the License.
- *
  * Copyright (c) 2003-2009 Thomas Graf <tgraf@suug.ch>
  */