Commit 5025b0f0 authored by Mimi Zohar's avatar Mimi Zohar Committed by Shuah Khan
Browse files

selftests/kexec: define a set of common functions 



Define, update and move get_secureboot_mode() to a common file for use
by other tests.

Updated to check both the efivar SecureBoot-$(UUID) and
SetupMode-$(UUID), based on Dave Young's review.

Signed-off-by: default avatarMimi Zohar <zohar@linux.ibm.com>
Reviewed-by: default avatarPetr Vorel <pvorel@suse.cz>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 89eba7db

tools/testing/selftests/kexec/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -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 := kexec_common_lib.sh



include ../lib.mk

tools/testing/selftests/kexec/kexec_common_lib.sh

0 → 100755
+38 −0
Original line number Diff line number Diff line 
#!/bin/sh

# SPDX-License-Identifier: GPL-2.0



# Check efivar SecureBoot-$(the UUID) and SetupMode-$(the UUID).

# 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".  The efi

# SetupMode can be similarly accessed.

# Return 1 for SecureBoot mode enabled and SetupMode mode disabled.

get_secureboot_mode()

{

	local efivarfs="/sys/firmware/efi/efivars"

	local secure_boot_file="$efivarfs/../vars/SecureBoot-*/data"

	local setup_mode_file="$efivarfs/../vars/SetupMode-*/data"

	local secureboot_mode=0

	local setup_mode=0



	# Make sure that efivars is mounted in the normal location

	if ! grep -q "^\S\+ $efivarfs efivarfs" /proc/mounts; then

		log_skip "efivars is not mounted on $efivarfs"

	fi



	# Due to globbing, quoting "secure_boot_file" and "setup_mode_file"

	# is not possible.  (Todo: initialize variables using find or ls.)

	if [ ! -e $secure_boot_file ] || [ ! -e $setup_mode_file ]; then

		log_skip "unknown secureboot/setup mode"

	fi



	secureboot_mode=`od -An -t u1 $secure_boot_file`

	setup_mode=`od -An -t u1 $setup_mode_file`



	if [ $secureboot_mode -eq 1 ] && [ $setup_mode -eq 0 ]; then

		log_info "secure boot mode enabled"

		return 1;

	fi

	log_info "secure boot mode not enabled"

	return 0;

}

tools/testing/selftests/kexec/test_kexec_load.sh

+3 −14
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ 
# is booted in secureboot mode.



TEST="$0"

EFIVARFS="/sys/firmware/efi/efivars"

. ./kexec_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`"

CRA Git | Maintained and supported by SUSTech CRA and CCSE