Commit 1bc38b8f authored Oct 05, 2018 by Alexei Starovoitov Committed by Daniel Borkmann Oct 08, 2018

libbpf: relicense libbpf as LGPL-2.1 OR BSD-2-Clause



libbpf is maturing as a library and gaining features that no other bpf libraries support
(BPF Type Format, bpf to bpf calls, etc)
Many Apache2 licensed projects (like bcc, bpftrace, gobpf, cilium, etc)
would like to use libbpf, but cannot do this yet, since Apache Foundation explicitly
states that LGPL is incompatible with Apache2.
Hence let's relicense libbpf as dual license LGPL-2.1 or BSD-2-Clause,
since BSD-2 is compatible with Apache2.
Dual LGPL or Apache2 is invalid combination.
Fix license mistake in Makefile as well.

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrey Ignatov <rdna@fb.com>
Acked-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Acked-by: Björn Töpel <bjorn.topel@intel.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: David Beckett <david.beckett@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Joe Stringer <joe@ovn.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Roman Gushchin <guro@fb.com>
Acked-by: Wang Nan <wangnan0@huawei.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>

parent 541d7fdd

tools/lib/bpf/Makefile

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Original line number	Original line	Diff line number	Diff line
	# SPDX-License-Identifier: GPL-2.0		# SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
	# Most of this file is copied from tools/lib/traceevent/Makefile		# Most of this file is copied from tools/lib/traceevent/Makefile

	BPF_VERSION = 0		BPF_VERSION = 0

tools/lib/bpf/bpf.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	// SPDX-License-Identifier: LGPL-2.1		// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)

	/*		/*
	* common eBPF ELF operations.		* common eBPF ELF operations.

tools/lib/bpf/bpf.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	/* SPDX-License-Identifier: LGPL-2.1 */		/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */

	/*		/*
	* common eBPF ELF operations.		* common eBPF ELF operations.

tools/lib/bpf/btf.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	// SPDX-License-Identifier: LGPL-2.1		// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
	/* Copyright (c) 2018 Facebook */		/* Copyright (c) 2018 Facebook */

	#include <stdlib.h>		#include <stdlib.h>

tools/lib/bpf/btf.h

+1 −1

Original line number	Original line	Diff line number	Diff line
	/* SPDX-License-Identifier: LGPL-2.1 */		/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */
	/* Copyright (c) 2018 Facebook */		/* Copyright (c) 2018 Facebook */

	#ifndef __LIBBPF_BTF_H		#ifndef __LIBBPF_BTF_H

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