From patchwork Tue Feb 26 23:26:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mimi Zohar X-Patchwork-Id: 10830919 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 084291575 for ; Tue, 26 Feb 2019 23:28:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB9E02D51E for ; Tue, 26 Feb 2019 23:28:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DF9C82D535; Tue, 26 Feb 2019 23:28:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 776EE2D51E for ; Tue, 26 Feb 2019 23:28:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728791AbfBZX1u (ORCPT ); Tue, 26 Feb 2019 18:27:50 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:56944 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728729AbfBZX1u (ORCPT ); Tue, 26 Feb 2019 18:27:50 -0500 Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id x1QNNx1Y005093 for ; Tue, 26 Feb 2019 18:27:49 -0500 Received: from e06smtp02.uk.ibm.com (e06smtp02.uk.ibm.com [195.75.94.98]) by mx0b-001b2d01.pphosted.com with ESMTP id 2qwbr5jmn0-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 26 Feb 2019 18:27:49 -0500 Received: from localhost by e06smtp02.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 26 Feb 2019 23:27:44 -0000 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id x1QNRhe757802838 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 26 Feb 2019 23:27:43 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B9C83A404D; Tue, 26 Feb 2019 23:27:43 +0000 (GMT) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0A262A4040; Tue, 26 Feb 2019 23:27:43 +0000 (GMT) Received: from localhost.ibm.com (unknown [9.80.106.105]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 26 Feb 2019 23:27:42 +0000 (GMT) From: Mimi Zohar To: linux-kselftest@vger.kernel.org, Shuah Khan Cc: linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, Mimi Zohar Subject: [PATCH v2 2/5] selftests/ima: define a set of common functions Date: Tue, 26 Feb 2019 18:26:57 -0500 X-Mailer: git-send-email 2.7.5 In-Reply-To: <1551223620-11586-1-git-send-email-zohar@linux.ibm.com> References: <1551223620-11586-1-git-send-email-zohar@linux.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 19022623-0008-0000-0000-000002C54C63 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19022623-0009-0000-0000-00002231977B Message-Id: <1551223620-11586-3-git-send-email-zohar@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-02-26_13:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1902260158 Sender: linux-integrity-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-integrity@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Define, update and move get_secureboot_mode() to a common file for use by other tests. Signed-off-by: Mimi Zohar Reviewed-by: Petr Vorel Reviewed-by: Petr Vorel --- tools/testing/selftests/ima/Makefile | 1 + tools/testing/selftests/ima/common_lib.sh | 24 ++++++++++++++++++++++++ tools/testing/selftests/ima/test_kexec_load.sh | 17 +++-------------- 3 files changed, 28 insertions(+), 14 deletions(-) create mode 100755 tools/testing/selftests/ima/common_lib.sh diff --git a/tools/testing/selftests/ima/Makefile b/tools/testing/selftests/ima/Makefile index 0b3adf5444b6..46b9e04d2737 100644 --- a/tools/testing/selftests/ima/Makefile +++ b/tools/testing/selftests/ima/Makefile @@ -5,6 +5,7 @@ ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/) ifeq ($(ARCH),x86) TEST_PROGS := test_kexec_load.sh +TEST_FILES := common_lib.sh include ../lib.mk diff --git a/tools/testing/selftests/ima/common_lib.sh b/tools/testing/selftests/ima/common_lib.sh new file mode 100755 index 000000000000..5583ea74c14e --- /dev/null +++ b/tools/testing/selftests/ima/common_lib.sh @@ -0,0 +1,24 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-or-later + +# The secure boot mode can be accessed either as the last integer +# of "od -An -t u1 /sys/firmware/efi/efivars/SecureBoot-*" or from +# "od -An -t u1 /sys/firmware/efi/vars/SecureBoot-*/data". +# Return 1 for SecureBoot mode enabled. +get_secureboot_mode() +{ + local efivarfs="/sys/firmware/efi/efivars" + # Make sure that efivars is mounted in the normal location + if ! grep -q "^\S\+ $efivarfs efivarfs" /proc/mounts; then + echo "$TEST: efivars is not mounted on $efivarfs" >&2 + exit $ksft_skip + fi + + # Get secureboot mode + local file="$efivarfs/../vars/SecureBoot-*/data" + if [ ! -e $file ]; then + echo "$TEST: unknown secureboot mode" >&2 + exit $ksft_skip + fi + return `od -An -t u1 /sys/firmware/efi/vars/SecureBoot-*/data` +} diff --git a/tools/testing/selftests/ima/test_kexec_load.sh b/tools/testing/selftests/ima/test_kexec_load.sh index 0345803e7bec..35934e0665f1 100755 --- a/tools/testing/selftests/ima/test_kexec_load.sh +++ b/tools/testing/selftests/ima/test_kexec_load.sh @@ -5,7 +5,7 @@ # is booted in secureboot mode. TEST="$0" -EFIVARFS="/sys/firmware/efi/efivars" +. ./common_lib.sh rc=0 # Kselftest framework requirement - SKIP code is 4. @@ -17,19 +17,8 @@ if [ $(id -ru) -ne 0 ]; then exit $ksft_skip fi -# Make sure that efivars is mounted in the normal location -if ! grep -q "^\S\+ $EFIVARFS efivarfs" /proc/mounts; then - echo "$TEST: efivars is not mounted on $EFIVARFS" >&2 - exit $ksft_skip -fi - -# Get secureboot mode -file="$EFIVARFS/SecureBoot-*" -if [ ! -e $file ]; then - echo "$TEST: unknown secureboot mode" >&2 - exit $ksft_skip -fi -secureboot=`hexdump $file | awk '{print substr($4,length($4),1)}'` +get_secureboot_mode +secureboot=$? # kexec_load should fail in secure boot mode KERNEL_IMAGE="/boot/vmlinuz-`uname -r`"