mirror of
https://github.com/brain-hackers/u-boot-brain
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bc246c69ae
A time authenticated variable cannot be overwritten with another value with the same time stamp. So we must ensure the correct sequence of time stamps when generating out test data. Using parameter -t for sign-efi-sig-list gives reproducible results and avoids sleep statements. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
134 lines
6.3 KiB
Python
134 lines
6.3 KiB
Python
# SPDX-License-Identifier: GPL-2.0+
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# Copyright (c) 2019, Linaro Limited
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# Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
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import os
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import os.path
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import pytest
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import re
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from subprocess import call, check_call, check_output, CalledProcessError
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from defs import *
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# from test/py/conftest.py
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def tool_is_in_path(tool):
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for path in os.environ["PATH"].split(os.pathsep):
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fn = os.path.join(path, tool)
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if os.path.isfile(fn) and os.access(fn, os.X_OK):
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return True
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return False
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#
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# Fixture for UEFI secure boot test
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#
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@pytest.fixture(scope='session')
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def efi_boot_env(request, u_boot_config):
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"""Set up a file system to be used in UEFI secure boot test.
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Args:
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request: Pytest request object.
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u_boot_config: U-boot configuration.
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Return:
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A path to disk image to be used for testing
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"""
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global HELLO_PATH
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image_path = u_boot_config.persistent_data_dir
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image_path = image_path + '/' + EFI_SECBOOT_IMAGE_NAME
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image_size = EFI_SECBOOT_IMAGE_SIZE
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part_size = EFI_SECBOOT_PART_SIZE
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fs_type = EFI_SECBOOT_FS_TYPE
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if HELLO_PATH == '':
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HELLO_PATH = u_boot_config.build_dir + '/lib/efi_loader/helloworld.efi'
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try:
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mnt_point = u_boot_config.persistent_data_dir + '/mnt_efisecure'
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check_call('mkdir -p {}'.format(mnt_point), shell=True)
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# create a disk/partition
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check_call('dd if=/dev/zero of=%s bs=1MiB count=%d'
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% (image_path, image_size), shell=True)
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check_call('sgdisk %s -n 1:0:+%dMiB'
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% (image_path, part_size), shell=True)
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# create a file system
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check_call('dd if=/dev/zero of=%s.tmp bs=1MiB count=%d'
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% (image_path, part_size), shell=True)
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check_call('mkfs -t %s %s.tmp' % (fs_type, image_path), shell=True)
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check_call('dd if=%s.tmp of=%s bs=1MiB seek=1 count=%d conv=notrunc'
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% (image_path, image_path, 1), shell=True)
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check_call('rm %s.tmp' % image_path, shell=True)
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loop_dev = check_output('sudo losetup -o 1MiB --sizelimit %dMiB --show -f %s | tr -d "\n"'
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% (part_size, image_path), shell=True).decode()
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check_output('sudo mount -t %s -o umask=000 %s %s'
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% (fs_type, loop_dev, mnt_point), shell=True)
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# suffix
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# *.key: RSA private key in PEM
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# *.crt: X509 certificate (self-signed) in PEM
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# *.esl: signature list
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# *.hash: message digest of image as signature list
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# *.auth: signed signature list in signature database format
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# *.efi: UEFI image
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# *.efi.signed: signed UEFI image
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# Create signature database
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## PK
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check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_PK/ -keyout PK.key -out PK.crt -nodes -days 365'
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% mnt_point, shell=True)
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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'
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% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
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shell=True)
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## PK_null for deletion
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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'
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% (mnt_point, EFITOOLS_PATH), shell=True)
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## KEK
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check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_KEK/ -keyout KEK.key -out KEK.crt -nodes -days 365'
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% mnt_point, shell=True)
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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'
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% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
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shell=True)
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## db
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check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_db/ -keyout db.key -out db.crt -nodes -days 365'
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% mnt_point, shell=True)
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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'
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% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
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shell=True)
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## db1
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check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_db1/ -keyout db1.key -out db1.crt -nodes -days 365'
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% mnt_point, shell=True)
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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'
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% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
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shell=True)
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## db1-update
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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'
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% (mnt_point, EFITOOLS_PATH), shell=True)
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## dbx
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check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_dbx/ -keyout dbx.key -out dbx.crt -nodes -days 365'
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% mnt_point, shell=True)
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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'
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% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
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shell=True)
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# Copy image
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check_call('cp %s %s' % (HELLO_PATH, mnt_point), shell=True)
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## Sign image
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check_call('cd %s; sbsign --key db.key --cert db.crt helloworld.efi'
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% mnt_point, shell=True)
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## Digest image
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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'
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% (mnt_point, EFITOOLS_PATH, EFITOOLS_PATH),
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shell=True)
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check_call('sudo umount %s' % loop_dev, shell=True)
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check_call('sudo losetup -d %s' % loop_dev, shell=True)
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except CalledProcessError as e:
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pytest.skip('Setup failed: %s' % e.cmd)
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return
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else:
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yield image_path
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finally:
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call('rm -f %s' % image_path, shell=True)
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