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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: Signed Image Authentication Test
- """
- This test verifies image authentication for signed images.
- """
- import pytest
- @pytest.mark.boardspec('sandbox')
- @pytest.mark.buildconfigspec('efi_secure_boot')
- @pytest.mark.buildconfigspec('cmd_efidebug')
- @pytest.mark.buildconfigspec('cmd_fat')
- @pytest.mark.buildconfigspec('cmd_nvedit_efi')
- @pytest.mark.slow
- class TestEfiSignedImage(object):
- def test_efi_signed_image_auth1(self, u_boot_console, efi_boot_env):
- """
- Test Case 1 - Secure boot is not in force
- """
- u_boot_console.restart_uboot()
- disk_img = efi_boot_env
- with u_boot_console.log.section('Test Case 1a'):
- # Test Case 1a, run signed image if no PK
- output = u_boot_console.run_command_list([
- 'host bind 0 %s' % disk_img,
- 'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""',
- 'efidebug boot next 1',
- 'bootefi bootmgr'])
- assert 'Hello, world!' in ''.join(output)
- with u_boot_console.log.section('Test Case 1b'):
- # Test Case 1b, run unsigned image if no PK
- output = u_boot_console.run_command_list([
- 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""',
- 'efidebug boot next 2',
- 'bootefi bootmgr'])
- assert 'Hello, world!' in ''.join(output)
- def test_efi_signed_image_auth2(self, u_boot_console, efi_boot_env):
- """
- Test Case 2 - Secure boot is in force,
- authenticated by db (TEST_db certificate in db)
- """
- u_boot_console.restart_uboot()
- disk_img = efi_boot_env
- with u_boot_console.log.section('Test Case 2a'):
- # Test Case 2a, db is not yet installed
- output = u_boot_console.run_command_list([
- 'host bind 0 %s' % disk_img,
- 'fatload host 0:1 4000000 KEK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
- 'fatload host 0:1 4000000 PK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""',
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert('\'HELLO1\' failed' in ''.join(output))
- assert('efi_start_image() returned: 26' in ''.join(output))
- output = u_boot_console.run_command_list([
- 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""',
- 'efidebug boot next 2',
- 'efidebug test bootmgr'])
- assert '\'HELLO2\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- with u_boot_console.log.section('Test Case 2b'):
- # Test Case 2b, authenticated by db
- output = u_boot_console.run_command_list([
- 'fatload host 0:1 4000000 db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot next 2',
- 'efidebug test bootmgr'])
- assert '\'HELLO2\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot next 1',
- 'bootefi bootmgr'])
- assert 'Hello, world!' in ''.join(output)
- def test_efi_signed_image_auth3(self, u_boot_console, efi_boot_env):
- """
- Test Case 3 - rejected by dbx (TEST_db certificate in dbx)
- """
- u_boot_console.restart_uboot()
- disk_img = efi_boot_env
- with u_boot_console.log.section('Test Case 3a'):
- # Test Case 3a, rejected by dbx
- output = u_boot_console.run_command_list([
- 'host bind 0 %s' % disk_img,
- 'fatload host 0:1 4000000 db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx',
- 'fatload host 0:1 4000000 KEK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
- 'fatload host 0:1 4000000 PK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""',
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- with u_boot_console.log.section('Test Case 3b'):
- # Test Case 3b, rejected by dbx even if db allows
- output = u_boot_console.run_command_list([
- 'fatload host 0:1 4000000 db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- def test_efi_signed_image_auth4(self, u_boot_console, efi_boot_env):
- """
- Test Case 4 - revoked by dbx (digest of TEST_db certificate in dbx)
- """
- u_boot_console.restart_uboot()
- disk_img = efi_boot_env
- with u_boot_console.log.section('Test Case 4'):
- # Test Case 4, rejected by dbx
- output = u_boot_console.run_command_list([
- 'host bind 0 %s' % disk_img,
- 'fatload host 0:1 4000000 dbx_hash.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx',
- 'fatload host 0:1 4000000 db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
- 'fatload host 0:1 4000000 KEK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
- 'fatload host 0:1 4000000 PK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""',
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- def test_efi_signed_image_auth5(self, u_boot_console, efi_boot_env):
- """
- Test Case 5 - multiple signatures
- one signed with TEST_db, and
- one signed with TEST_db1
- """
- u_boot_console.restart_uboot()
- disk_img = efi_boot_env
- with u_boot_console.log.section('Test Case 5a'):
- # Test Case 5a, rejected if any of signatures is not verified
- output = u_boot_console.run_command_list([
- 'host bind 0 %s' % disk_img,
- 'fatload host 0:1 4000000 db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
- 'fatload host 0:1 4000000 KEK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
- 'fatload host 0:1 4000000 PK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""',
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- with u_boot_console.log.section('Test Case 5b'):
- # Test Case 5b, authenticated if both signatures are verified
- output = u_boot_console.run_command_list([
- 'fatload host 0:1 4000000 db1.auth',
- 'setenv -e -nv -bs -rt -at -a -i 4000000,$filesize db'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""',
- 'efidebug boot next 1',
- 'bootefi bootmgr'])
- assert 'Hello, world!' in ''.join(output)
- with u_boot_console.log.section('Test Case 5c'):
- # Test Case 5c, rejected if any of signatures is revoked
- output = u_boot_console.run_command_list([
- 'fatload host 0:1 4000000 dbx_hash1.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""',
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- def test_efi_signed_image_auth6(self, u_boot_console, efi_boot_env):
- """
- Test Case 6 - using digest of signed image in database
- """
- u_boot_console.restart_uboot()
- disk_img = efi_boot_env
- with u_boot_console.log.section('Test Case 6a'):
- # Test Case 6a, verified by image's digest in db
- output = u_boot_console.run_command_list([
- 'host bind 0 %s' % disk_img,
- 'fatload host 0:1 4000000 db_hello_signed.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
- 'fatload host 0:1 4000000 KEK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
- 'fatload host 0:1 4000000 PK.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""',
- 'efidebug boot next 1',
- 'bootefi bootmgr'])
- assert 'Hello, world!' in ''.join(output)
- with u_boot_console.log.section('Test Case 6b'):
- # Test Case 6b, rejected by TEST_db certificate in dbx
- output = u_boot_console.run_command_list([
- 'fatload host 0:1 4000000 dbx_db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
- with u_boot_console.log.section('Test Case 6c'):
- # Test Case 6c, rejected by image's digest in dbx
- output = u_boot_console.run_command_list([
- 'fatload host 0:1 4000000 db.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
- 'fatload host 0:1 4000000 dbx_hello_signed.auth',
- 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx'])
- assert 'Failed to set EFI variable' not in ''.join(output)
- output = u_boot_console.run_command_list([
- 'efidebug boot next 1',
- 'efidebug test bootmgr'])
- assert '\'HELLO\' failed' in ''.join(output)
- assert 'efi_start_image() returned: 26' in ''.join(output)
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