From patchwork Fri Apr 4 21:54:52 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Blaise Boscaccy X-Patchwork-Id: 878335 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 61B6A1AA79C; Fri, 4 Apr 2025 21:56:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743803772; cv=none; b=uXET3Ha3eNmOAEOgMpCGw0ICWlag4gX5htaiyTSPhVIFCFcpv2nHyZjEEUlj6SB4W4l3pVB5hWhNbnp1JqwsU7y7kcmoTcTBBMN12OIc2qmFlabRWmgXm0uG2whOFN9dUYDIp9ulq01Uy9FsP0ytErmROmnsdh312RAM+hgXkqc= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743803772; c=relaxed/simple; bh=L0t+Q1KKJdJN2RacIOBIUr8a8kwGK+c8Yw6UZguXi8g=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Z1kRQicTY4mFSrKj06IpautENfO7ZJZKjPNwIeMTzxzH9wyih13z+nzTovwFXnTgh9i2fBf7ABTh38COMyKg/60yaiwnYc+NZoSBcKxpKnQE+xgWBI7AUu6RUiZEeZ+tuRUJ1LRxYTejxdKhVYSTR0d7rq5f9of09Pc7EtmPnZY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=NDCGCmIV; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="NDCGCmIV" Received: from narnia.corp.microsoft.com (unknown [167.220.2.28]) by linux.microsoft.com (Postfix) with ESMTPSA id BECB02027DF4; Fri, 4 Apr 2025 14:56:03 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com BECB02027DF4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1743803771; bh=e/k8KYJVXZG2jyZEivOVKZjnNf5Vwltj4SY0RuIsJQg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=NDCGCmIVaicPIJAiVo4z6Q2GBrHNSkxFxinre8CfLiQNsZJSkNnczsAyLCo16Hwoh /uTQQ09d3mh98tLkCbt6vKKO20pZiN+kPnKbS+QlMTJ4QKa/MN7BVYKjKQEIiGMj+n sayVVZvLGByqRrYhdp85Y4SQGFL7zCE8R71cNcLs= From: Blaise Boscaccy To: Jonathan Corbet , David Howells , Herbert Xu , "David S. Miller" , Paul Moore , James Morris , "Serge E. Hallyn" , Masahiro Yamada , Nathan Chancellor , Nicolas Schier , Shuah Khan , =?utf-8?q?Micka=C3=ABl_Sala=C3=BCn?= , =?utf-8?q?G=C3=BCnt?= =?utf-8?q?her_Noack?= , Nick Desaulniers , Bill Wendling , Justin Stitt , Blaise Boscaccy , Jarkko Sakkinen , Jan Stancek , Neal Gompa , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, keyrings@vger.kernel.org, linux-crypto@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kselftest@vger.kernel.org, bpf@vger.kernel.org, llvm@lists.linux.dev, nkapron@google.com, teknoraver@meta.com, roberto.sassu@huawei.com, xiyou.wangcong@gmail.com Subject: [PATCH v2 security-next 3/4] hornet: Add a light skeleton data extractor script Date: Fri, 4 Apr 2025 14:54:52 -0700 Message-ID: <20250404215527.1563146-4-bboscaccy@linux.microsoft.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250404215527.1563146-1-bboscaccy@linux.microsoft.com> References: <20250404215527.1563146-1-bboscaccy@linux.microsoft.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This script eases light skeleton development against Hornet by generating a data payload which can be used for signing a light skeleton binary using sign-ebpf. The binary payload it generates contains the skeleton's ebpf instructions followed by the skeleton loader's map. Signed-off-by: Blaise Boscaccy --- scripts/hornet/extract-skel.sh | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100755 scripts/hornet/extract-skel.sh diff --git a/scripts/hornet/extract-skel.sh b/scripts/hornet/extract-skel.sh new file mode 100755 index 000000000000..9ace78794b85 --- /dev/null +++ b/scripts/hornet/extract-skel.sh @@ -0,0 +1,29 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (c) 2025 Microsoft Corporation +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of version 2 of the GNU General Public +# License as published by the Free Software Foundation. + +function usage() { + echo "Sample script for extracting instructions and map data out of" + echo "autogenerated eBPF lskel headers" + echo "" + echo "USAGE: header_file output_file" + exit +} + +ARGC=$# + +EXPECTED_ARGS=2 + +if [ $ARGC -ne $EXPECTED_ARGS ] ; then + usage +else + printf $(gcc -E $1 | grep "static const char opts_insn" | \ + awk -F"=" '{print $2}' | sed 's/;\+$//' | sed 's/\"//g') > $2 + printf $(gcc -E $1 | grep "static const char opts_data" | \ + awk -F"=" '{print $2}' | sed 's/;\+$//' | sed 's/\"//g') >> $2 +fi