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# SPDX-License-Identifier: GPL-2.0+
# Copyright (c) 2019, Linaro Limited
# Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
#
# U-Boot UEFI: Variable Authentication Test
"""
This test verifies variable authentication
"""
import pytest
@pytest.mark.boardspec('sandbox')
@pytest.mark.buildconfigspec('efi_secure_boot')
@pytest.mark.buildconfigspec('cmd_fat')
@pytest.mark.buildconfigspec('cmd_nvedit_efi')
@pytest.mark.slow
class TestEfiAuthVar(object):
def test_efi_var_auth1(self, u_boot_console, efi_boot_env):
"""
Test Case 1 - Install signature database
"""
u_boot_console.restart_uboot()
disk_img = efi_boot_env
with u_boot_console.log.section('Test Case 1a'):
# Test Case 1a, Initial secure state
output = u_boot_console.run_command_list([
'host bind 0 %s' % disk_img,
'printenv -e SecureBoot'])
assert '00000000: 00' in ''.join(output)
output = u_boot_console.run_command(
'printenv -e SetupMode')
assert '00000000: 01' in output
with u_boot_console.log.section('Test Case 1b'):
# Test Case 1b, PK without AUTHENTICATED_WRITE_ACCESS
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 PK.auth',
'setenv -e -nv -bs -rt -i 4000000,$filesize PK'])
assert 'Failed to set EFI variable' in ''.join(output)
with u_boot_console.log.section('Test Case 1c'):
# Test Case 1c, install PK
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 PK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'printenv -e -n PK'])
assert 'PK:' in ''.join(output)
output = u_boot_console.run_command(
'printenv -e SecureBoot')
assert '00000000: 01' in output
output = u_boot_console.run_command(
'printenv -e SetupMode')
assert '00000000: 00' in output
with u_boot_console.log.section('Test Case 1d'):
# Test Case 1d, db/dbx without KEK
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db'])
assert 'Failed to set EFI variable' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx'])
assert 'Failed to set EFI variable' in ''.join(output)
with u_boot_console.log.section('Test Case 1e'):
# Test Case 1e, install KEK
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 KEK.auth',
'setenv -e -nv -bs -rt -i 4000000,$filesize KEK'])
assert 'Failed to set EFI variable' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 KEK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
'printenv -e -n KEK'])
assert 'KEK:' in ''.join(output)
output = u_boot_console.run_command(
'printenv -e SecureBoot')
assert '00000000: 01' in output
with u_boot_console.log.section('Test Case 1f'):
# Test Case 1f, install db
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -i 4000000,$filesize db'])
assert 'Failed to set EFI variable' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'db:' in ''.join(output)
output = u_boot_console.run_command(
'printenv -e SecureBoot')
assert '00000000: 01' in output
with u_boot_console.log.section('Test Case 1g'):
# Test Case 1g, install dbx
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 dbx.auth',
'setenv -e -nv -bs -rt -i 4000000,$filesize dbx'])
assert 'Failed to set EFI variable' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 dbx.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f dbx'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'dbx:' in ''.join(output)
output = u_boot_console.run_command(
'printenv -e SecureBoot')
assert '00000000: 01' in output
def test_efi_var_auth2(self, u_boot_console, efi_boot_env):
"""
Test Case 2 - Update database by overwriting
"""
u_boot_console.restart_uboot()
disk_img = efi_boot_env
with u_boot_console.log.section('Test Case 2a'):
# Test Case 2a, update without AUTHENTICATED_WRITE_ACCESS
output = u_boot_console.run_command_list([
'host bind 0 %s' % disk_img,
'fatload host 0:1 4000000 PK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'fatload host 0:1 4000000 KEK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'db:' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db1.auth',
'setenv -e -nv -bs -rt -i 4000000,$filesize db'])
assert 'Failed to set EFI variable' in ''.join(output)
with u_boot_console.log.section('Test Case 2b'):
# Test Case 2b, update without correct signature
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db.esl',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db'])
assert 'Failed to set EFI variable' in ''.join(output)
with u_boot_console.log.section('Test Case 2c'):
# Test Case 2c, update with correct signature
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db1.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'db:' in ''.join(output)
def test_efi_var_auth3(self, u_boot_console, efi_boot_env):
"""
Test Case 3 - Append database
"""
u_boot_console.restart_uboot()
disk_img = efi_boot_env
with u_boot_console.log.section('Test Case 3a'):
# Test Case 3a, update without AUTHENTICATED_WRITE_ACCESS
output = u_boot_console.run_command_list([
'host bind 0 %s' % disk_img,
'fatload host 0:1 4000000 PK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'fatload host 0:1 4000000 KEK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'db:' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db1.auth',
'setenv -e -nv -bs -rt -a -i 4000000,$filesize db'])
assert 'Failed to set EFI variable' in ''.join(output)
with u_boot_console.log.section('Test Case 3b'):
# Test Case 3b, update without correct signature
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db.esl',
'setenv -e -nv -bs -rt -at -a -i 4000000,$filesize db'])
assert 'Failed to set EFI variable' in ''.join(output)
with u_boot_console.log.section('Test Case 3c'):
# Test Case 3c, update with correct signature
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 db1.auth',
'setenv -e -nv -bs -rt -at -a -i 4000000,$filesize db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'db:' in ''.join(output)
def test_efi_var_auth4(self, u_boot_console, efi_boot_env):
"""
Test Case 4 - Delete database without authentication
"""
u_boot_console.restart_uboot()
disk_img = efi_boot_env
with u_boot_console.log.section('Test Case 4a'):
# Test Case 4a, update without AUTHENTICATED_WRITE_ACCESS
output = u_boot_console.run_command_list([
'host bind 0 %s' % disk_img,
'fatload host 0:1 4000000 PK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'fatload host 0:1 4000000 KEK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'db:' in ''.join(output)
output = u_boot_console.run_command_list([
'setenv -e -nv -bs -rt db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' in ''.join(output)
assert 'db:' in ''.join(output)
with u_boot_console.log.section('Test Case 4b'):
# Test Case 4b, update without correct signature/data
output = u_boot_console.run_command_list([
'setenv -e -nv -bs -rt -at db',
'printenv -e -n -guid d719b2cb-3d3a-4596-a3bc-dad00e67656f db'])
assert 'Failed to set EFI variable' in ''.join(output)
assert 'db:' in ''.join(output)
def test_efi_var_auth5(self, u_boot_console, efi_boot_env):
"""
Test Case 5 - Uninstall(delete) PK
"""
u_boot_console.restart_uboot()
disk_img = efi_boot_env
with u_boot_console.log.section('Test Case 5a'):
# Test Case 5a, Uninstall PK without correct signature
output = u_boot_console.run_command_list([
'host bind 0 %s' % disk_img,
'fatload host 0:1 4000000 PK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'fatload host 0:1 4000000 KEK.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
'printenv -e -n PK'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert 'PK:' in ''.join(output)
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 PK_null.esl',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'printenv -e -n PK'])
assert 'Failed to set EFI variable' in ''.join(output)
assert 'PK:' in ''.join(output)
with u_boot_console.log.section('Test Case 5b'):
# Test Case 5b, Uninstall PK with correct signature
output = u_boot_console.run_command_list([
'fatload host 0:1 4000000 PK_null.auth',
'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK',
'printenv -e -n PK'])
assert 'Failed to set EFI variable' not in ''.join(output)
assert '\"PK\" not defined' in ''.join(output)
output = u_boot_console.run_command(
'printenv -e SecureBoot')
assert '00000000: 00' in output
output = u_boot_console.run_command(
'printenv -e SetupMode')
assert '00000000: 01' in output
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