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# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2020, Linaro Limited
# Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
import os
import os.path
import re
from subprocess import call, check_call, check_output, CalledProcessError
import pytest
from capsule_defs import *
#
# Fixture for UEFI capsule test
#
@pytest.fixture(scope='session')
def efi_capsule_data(request, u_boot_config):
"""Set up a file system to be used in UEFI capsule and
authentication test.
Args:
request: Pytest request object.
u_boot_config: U-boot configuration.
Return:
A path to disk image to be used for testing
"""
global CAPSULE_DATA_DIR, CAPSULE_INSTALL_DIR
mnt_point = u_boot_config.persistent_data_dir + '/test_efi_capsule'
data_dir = mnt_point + CAPSULE_DATA_DIR
install_dir = mnt_point + CAPSULE_INSTALL_DIR
image_path = u_boot_config.persistent_data_dir + '/test_efi_capsule.img'
try:
# Create a target device
check_call('dd if=/dev/zero of=./spi.bin bs=1MiB count=16', shell=True)
check_call('rm -rf %s' % mnt_point, shell=True)
check_call('mkdir -p %s' % data_dir, shell=True)
check_call('mkdir -p %s' % install_dir, shell=True)
capsule_auth_enabled = u_boot_config.buildconfig.get(
'config_efi_capsule_authenticate')
if capsule_auth_enabled:
# Create private key (SIGNER.key) and certificate (SIGNER.crt)
check_call('cd %s; '
'openssl req -x509 -sha256 -newkey rsa:2048 '
'-subj /CN=TEST_SIGNER/ -keyout SIGNER.key '
'-out SIGNER.crt -nodes -days 365'
% data_dir, shell=True)
check_call('cd %s; %scert-to-efi-sig-list SIGNER.crt SIGNER.esl'
% (data_dir, EFITOOLS_PATH), shell=True)
# Update dtb adding capsule certificate
check_call('cd %s; '
'cp %s/test/py/tests/test_efi_capsule/signature.dts .'
% (data_dir, u_boot_config.source_dir), shell=True)
check_call('cd %s; '
'dtc -@ -I dts -O dtb -o signature.dtbo signature.dts; '
'fdtoverlay -i %s/arch/sandbox/dts/test.dtb '
'-o test_sig.dtb signature.dtbo'
% (data_dir, u_boot_config.build_dir), shell=True)
# Create *malicious* private key (SIGNER2.key) and certificate
# (SIGNER2.crt)
check_call('cd %s; '
'openssl req -x509 -sha256 -newkey rsa:2048 '
'-subj /CN=TEST_SIGNER/ -keyout SIGNER2.key '
'-out SIGNER2.crt -nodes -days 365'
% data_dir, shell=True)
# Create capsule files
# two regions: one for u-boot.bin and the other for u-boot.env
check_call('cd %s; echo -n u-boot:Old > u-boot.bin.old; echo -n u-boot:New > u-boot.bin.new; echo -n u-boot-env:Old -> u-boot.env.old; echo -n u-boot-env:New > u-boot.env.new' % data_dir,
shell=True)
check_call('sed -e \"s?BINFILE1?u-boot.bin.new?\" -e \"s?BINFILE2?u-boot.env.new?\" %s/test/py/tests/test_efi_capsule/uboot_bin_env.its > %s/uboot_bin_env.its' %
(u_boot_config.source_dir, data_dir),
shell=True)
check_call('cd %s; %s/tools/mkimage -f uboot_bin_env.its uboot_bin_env.itb' %
(data_dir, u_boot_config.build_dir),
shell=True)
check_call('cd %s; %s/tools/mkeficapsule --index 1 --fit uboot_bin_env.itb Test01' %
(data_dir, u_boot_config.build_dir),
shell=True)
check_call('cd %s; %s/tools/mkeficapsule --index 1 --raw u-boot.bin.new Test02' %
(data_dir, u_boot_config.build_dir),
shell=True)
if capsule_auth_enabled:
# firmware signed with proper key
check_call('cd %s; '
'%s/tools/mkeficapsule --index 1 --monotonic-count 1 '
'--private-key SIGNER.key --certificate SIGNER.crt '
'--raw u-boot.bin.new Test11'
% (data_dir, u_boot_config.build_dir),
shell=True)
# firmware signed with *mal* key
check_call('cd %s; '
'%s/tools/mkeficapsule --index 1 --monotonic-count 1 '
'--private-key SIGNER2.key '
'--certificate SIGNER2.crt '
'--raw u-boot.bin.new Test12'
% (data_dir, u_boot_config.build_dir),
shell=True)
# Create a disk image with EFI system partition
check_call('virt-make-fs --partition=gpt --size=+1M --type=vfat %s %s' %
(mnt_point, image_path), shell=True)
check_call('sgdisk %s -A 1:set:0 -t 1:C12A7328-F81F-11D2-BA4B-00A0C93EC93B' %
image_path, shell=True)
except CalledProcessError as exception:
pytest.skip('Setup failed: %s' % exception.cmd)
return
else:
yield image_path
finally:
call('rm -rf %s' % mnt_point, shell=True)
call('rm -f %s' % image_path, shell=True)
call('rm -f ./spi.bin', shell=True)
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