From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756053AbeDYRlP (ORCPT ); Wed, 25 Apr 2018 13:41:15 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:60766 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754654AbeDYRlK (ORCPT ); Wed, 25 Apr 2018 13:41:10 -0400 From: Jiri Olsa To: Alexei Starovoitov , Daniel Borkmann Cc: lkml , netdev@vger.kernel.org, Quentin Monnet Subject: [PATCHv2 0/3] bpf: Store/dump license string for loaded program Date: Wed, 25 Apr 2018 19:41:05 +0200 Message-Id: <20180425174108.6586-1-jolsa@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org hi, sending the change to store and dump the license info for loaded BPF programs. It's important for us get the license info, when investigating on screwed up machine. v2 changes: - dumping only the GPL compatible bool, without storing the whole license string Adding change to bpftool to dump the license GPL compatible info via: # bpftool prog list 3: kprobe name func_begin tag 57cd311f2e27366b license GPL NON compatible loaded_at Apr 25/11:20 uid 0 xlated 16B not jited memlock 4096B # bpftool prog list 4: kprobe name func_begin tag 57cd311f2e27366b license GPL compatible loaded_at Apr 25/11:20 uid 0 xlated 16B not jited memlock 4096B # bpftool prog show --json [{"id":3,"type":"kprobe","name":"func ... ,"gpl_compatible":false,"loade... Also available at: https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git bpf/license thanks, jirka --- Jiri Olsa (3): bpf: Add gpl_compatible flag to struct bpf_prog_info tools bpf: Sync bpf.h uapi header tools bpftool: Display license GPL compatible in prog show/list include/uapi/linux/bpf.h | 1 + kernel/bpf/syscall.c | 1 + tools/bpf/bpftool/prog.c | 3 +++ tools/include/uapi/linux/bpf.h | 1 + 4 files changed, 6 insertions(+)