From 5025b0f0fa25a0b71ae7ada96b18b6b63c24302f Mon Sep 17 00:00:00 2001 From: Mimi Zohar Date: Thu, 24 Jan 2019 08:57:20 -0500 Subject: 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: Mimi Zohar Reviewed-by: Petr Vorel Signed-off-by: Shuah Khan --- tools/testing/selftests/kexec/kexec_common_lib.sh | 38 +++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100755 tools/testing/selftests/kexec/kexec_common_lib.sh (limited to 'tools/testing/selftests/kexec/kexec_common_lib.sh') diff --git a/tools/testing/selftests/kexec/kexec_common_lib.sh b/tools/testing/selftests/kexec/kexec_common_lib.sh new file mode 100755 index 000000000000..05376be6a6f7 --- /dev/null +++ b/tools/testing/selftests/kexec/kexec_common_lib.sh @@ -0,0 +1,38 @@ +#!/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; +} -- cgit v1.2.3-59-g8ed1b