# SPDX-License-Identifier: GPL-2.0+ # Copyright (c) 2019, Linaro Limited # Author: AKASHI Takahiro import os import os.path from subprocess import call, check_call, check_output, CalledProcessError import pytest from defs import * # # Fixture for UEFI secure boot test # @pytest.fixture(scope='session') def efi_boot_env(request, u_boot_config): """Set up a file system to be used in UEFI secure boot test. Args: request: Pytest request object. u_boot_config: U-boot configuration. Return: A path to disk image to be used for testing """ global HELLO_PATH image_path = u_boot_config.persistent_data_dir image_path = image_path + '/' + EFI_SECBOOT_IMAGE_NAME if HELLO_PATH == '': HELLO_PATH = u_boot_config.build_dir + '/lib/efi_loader/helloworld.efi' try: mnt_point = u_boot_config.build_dir + '/mnt_efisecure' check_call('rm -rf {}'.format(mnt_point), shell=True) check_call('mkdir -p {}'.format(mnt_point), shell=True) # suffix # *.key: RSA private key in PEM # *.crt: X509 certificate (self-signed) in PEM # *.esl: signature list # *.hash: message digest of image as signature list # *.auth: signed signature list in signature database format # *.efi: UEFI image # *.efi.signed: signed UEFI image # Create signature database # PK check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_PK/ -keyout PK.key -out PK.crt -nodes -days 365' % mnt_point, shell=True) check_call('cd %s; %scert-to-efi-sig-list -g %s PK.crt PK.esl; %ssign-efi-sig-list -t "2020-04-01" -c PK.crt -k PK.key PK PK.esl PK.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) # PK_null for deletion check_call('cd %s; touch PK_null.esl; %ssign-efi-sig-list -t "2020-04-02" -c PK.crt -k PK.key PK PK_null.esl PK_null.auth' % (mnt_point, EFITOOLS_PATH), shell=True) # KEK check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_KEK/ -keyout KEK.key -out KEK.crt -nodes -days 365' % mnt_point, shell=True) check_call('cd %s; %scert-to-efi-sig-list -g %s KEK.crt KEK.esl; %ssign-efi-sig-list -t "2020-04-03" -c PK.crt -k PK.key KEK KEK.esl KEK.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) # db check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_db/ -keyout db.key -out db.crt -nodes -days 365' % mnt_point, shell=True) check_call('cd %s; %scert-to-efi-sig-list -g %s db.crt db.esl; %ssign-efi-sig-list -t "2020-04-04" -c KEK.crt -k KEK.key db db.esl db.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) # db1 check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_db1/ -keyout db1.key -out db1.crt -nodes -days 365' % mnt_point, shell=True) check_call('cd %s; %scert-to-efi-sig-list -g %s db1.crt db1.esl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key db db1.esl db1.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) # db1-update check_call('cd %s; %ssign-efi-sig-list -t "2020-04-06" -a -c KEK.crt -k KEK.key db db1.esl db1-update.auth' % (mnt_point, EFITOOLS_PATH), shell=True) ## dbx (TEST_dbx certificate) check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_dbx/ -keyout dbx.key -out dbx.crt -nodes -days 365' % mnt_point, shell=True) check_call('cd %s; %scert-to-efi-sig-list -g %s dbx.crt dbx.esl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx.esl dbx.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) ## dbx_hash (digest of TEST_db certificate) check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db.crt dbx_hash.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash.crl dbx_hash.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) ## dbx_hash1 (digest of TEST_db1 certificate) check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db1.crt dbx_hash1.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash1.crl dbx_hash1.auth' % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), shell=True) ## dbx_db (with TEST_db certificate) check_call('cd %s; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx db.esl dbx_db.auth' % (mnt_point, EFITOOLS_PATH), shell=True) # Copy image check_call('cp %s %s' % (HELLO_PATH, mnt_point), shell=True) # Sign image check_call('cd %s; sbsign --key db.key --cert db.crt helloworld.efi' % mnt_point, shell=True) ## Sign already-signed image with another key check_call('cd %s; sbsign --key db1.key --cert db1.crt --output helloworld.efi.signed_2sigs helloworld.efi.signed' % mnt_point, shell=True) ## Digest image check_call('cd %s; %shash-to-efi-sig-list helloworld.efi db_hello.hash; %ssign-efi-sig-list -t "2020-04-07" -c KEK.crt -k KEK.key db db_hello.hash db_hello.auth' % (mnt_point, EFITOOLS_PATH, EFITOOLS_PATH), shell=True) check_call('cd %s; %shash-to-efi-sig-list helloworld.efi.signed db_hello_signed.hash; %ssign-efi-sig-list -t "2020-04-03" -c KEK.crt -k KEK.key db db_hello_signed.hash db_hello_signed.auth' % (mnt_point, EFITOOLS_PATH, EFITOOLS_PATH), shell=True) check_call('cd %s; %ssign-efi-sig-list -t "2020-04-07" -c KEK.crt -k KEK.key dbx db_hello_signed.hash dbx_hello_signed.auth' % (mnt_point, EFITOOLS_PATH), shell=True) check_call('virt-make-fs --partition=gpt --size=+1M --type=vfat {} {}'.format(mnt_point, image_path), shell=True) check_call('rm -rf {}'.format(mnt_point), shell=True) except CalledProcessError as exception: pytest.skip('Setup failed: %s' % exception.cmd) return else: yield image_path finally: call('rm -f %s' % image_path, shell=True)