[U-Boot] [PATCH 16/16] efi_loader, pytest: add UEFI secure boot tests (image)

AKASHI Takahiro
2019-11-13T00:53:06Z

Provide test cases for
* image authentication for signed images
(test_efi_secboot/test_signed.py)
* image authentication for unsigned images
(test_efi_secboot/test_unsigned.py)

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
---
test/py/tests/test_efi_secboot/test_signed.py | 97 +++++++++++++++++
.../tests/test_efi_secboot/test_unsigned.py | 100 ++++++++++++++++++
2 files changed, 197 insertions(+)
create mode 100644 test/py/tests/test_efi_secboot/test_signed.py
create mode 100644 test/py/tests/test_efi_secboot/test_unsigned.py

diff --git a/test/py/tests/test_efi_secboot/test_signed.py b/test/py/tests/test_efi_secboot/test_signed.py
new file mode 100644
index 000000000000..00f539462eb8
--- /dev/null
+++ b/test/py/tests/test_efi_secboot/test_signed.py
@@ -0,0 +1,97 @@
+# 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
+import re
+from defs import *
+
+ at pytest.mark.boardspec('sandbox')
+ at pytest.mark.buildconfigspec('efi_secure_boot')
+ at pytest.mark.buildconfigspec('cmd_efidebug')
+ at pytest.mark.buildconfigspec('cmd_fat')
+ at pytest.mark.buildconfigspec('cmd_nvedit_efi')
+ at pytest.mark.slow
+class TestEfiSignedImage(object):
+ def test_efi_signed_image_auth1(self, u_boot_console, efi_boot_env):
+ """
+ Test Case 1 - authenticated by db
+ """
+ disk_img = efi_boot_env
+ with u_boot_console.log.section('Test Case 1a'):
+ # Test Case 1a, run signed image if no db/dbx
+ 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(re.search('Hello, world!', ''.join(output)))
+
+ with u_boot_console.log.section('Test Case 1b'):
+ # Test Case 1b, run unsigned image if no db/dbx
+ output = u_boot_console.run_command_list([
+ 'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""',
+ 'efidebug boot next 2',
+ 'bootefi bootmgr'])
+ assert(re.search('Hello, world!', ''.join(output)))
+
+ with u_boot_console.log.section('Test Case 1c'):
+ # Test Case 1c, not 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,$filesize db',
+ 'fatload host 0:1 4000000 KEK.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
+ 'fatload host 0:1 4000000 PK.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
+ assert(not re.search('Failed to set EFI variable', ''.join(output)))
+ output = u_boot_console.run_command_list([
+ 'efidebug boot next 2',
+ 'bootefi bootmgr'])
+ assert(re.search('\'HELLO2\' failed', ''.join(output)))
+
+ with u_boot_console.log.section('Test Case 1d'):
+ # Test Case 1d, authenticated by db
+ output = u_boot_console.run_command_list([
+ 'efidebug boot next 1',
+ 'bootefi bootmgr'])
+ assert(re.search('Hello, world!', ''.join(output)))
+
+ def test_efi_signed_image_auth2(self, u_boot_console, efi_boot_env):
+ """
+ Test Case 2 - rejected by dbx
+ """
+ disk_img = efi_boot_env
+ with u_boot_console.log.section('Test Case 2a'):
+ # Test Case 2a, rejected by dbx
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'fatload host 0:1 4000000 db.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$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(not re.search('Failed to set EFI variable', ''.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(re.search('\'HELLO\' failed', ''.join(output)))
+
+ with u_boot_console.log.section('Test Case 2b'):
+ # Test Case 2b, 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,$filesize db'])
+ assert(not re.search('Failed to set EFI variable', ''.join(output)))
+ output = u_boot_console.run_command_list([
+ 'efidebug boot next 1',
+ 'bootefi bootmgr'])
+ assert(re.search('\'HELLO\' failed', ''.join(output)))
diff --git a/test/py/tests/test_efi_secboot/test_unsigned.py b/test/py/tests/test_efi_secboot/test_unsigned.py
new file mode 100644
index 000000000000..2bfa188b530c
--- /dev/null
+++ b/test/py/tests/test_efi_secboot/test_unsigned.py
@@ -0,0 +1,100 @@
+# SPDX-License-Identifier: GPL-2.0+
+# Copyright (c) 2019, Linaro Limited
+# Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
+#
+# U-Boot UEFI: Signed Image Authentication Test
+
+"""
+This test verifies image authentication for unsigned images.
+"""
+
+import pytest
+import re
+from defs import *
+
+ at pytest.mark.boardspec('sandbox')
+ at pytest.mark.buildconfigspec('efi_secure_boot')
+ at pytest.mark.buildconfigspec('cmd_efidebug')
+ at pytest.mark.buildconfigspec('cmd_fat')
+ at pytest.mark.buildconfigspec('cmd_nvedit_efi')
+ at pytest.mark.slow
+class TestEfiUnsignedImage(object):
+ def test_efi_unsigned_image_auth1(self, u_boot_console, efi_boot_env):
+ """
+ Test Case 1 - rejected when not digest in db or dbx
+ """
+ disk_img = efi_boot_env
+ with u_boot_console.log.section('Test Case 1'):
+ # Test Case 1
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'fatload host 0:1 4000000 KEK.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
+ 'fatload host 0:1 4000000 PK.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
+ assert(not re.search('Failed to set EFI variable', ''.join(output)))
+
+ output = u_boot_console.run_command_list([
+ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""',
+ 'efidebug boot next 1',
+ 'bootefi bootmgr'])
+ assert(re.search('\'HELLO\' failed', ''.join(output)))
+
+ def test_efi_unsigned_image_auth2(self, u_boot_console, efi_boot_env):
+ """
+ Test Case 2 - authenticated by digest in db
+ """
+ disk_img = efi_boot_env
+ with u_boot_console.log.section('Test Case 2'):
+ # Test Case 2
+ output = u_boot_console.run_command_list([
+ 'host bind 0 %s' % disk_img,
+ 'fatload host 0:1 4000000 db_hello.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$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(not re.search('Failed to set EFI variable', ''.join(output)))
+
+ output = u_boot_console.run_command_list([
+ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""',
+ 'efidebug boot next 1',
+ 'bootefi bootmgr'])
+ assert(re.search('Hello, world!', ''.join(output)))
+
+ def test_efi_unsigned_image_auth3(self, u_boot_console, efi_boot_env):
+ """
+ Test Case 3 - rejected by digest in dbx
+ """
+ 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_hello.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,$filesize PK'])
+ assert(not re.search('Failed to set EFI variable', ''.join(output)))
+
+ output = u_boot_console.run_command_list([
+ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""',
+ 'efidebug boot next 1',
+ 'bootefi bootmgr'])
+ assert(re.search('\'HELLO\' failed', ''.join(output)))
+
+ with u_boot_console.log.section('Test Case 3b'):
+ # Test Case 3b, rejected by dbx even if db allows
+ output = u_boot_console.run_command_list([
+ 'fatload host 0:1 4000000 db_hello.auth',
+ 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db'])
+ assert(not re.search('Failed to set EFI variable', ''.join(output)))
+
+ output = u_boot_console.run_command_list([
+ 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi ""',
+ 'efidebug boot next 1',
+ 'bootefi bootmgr'])
+ assert(re.search('\'HELLO\' failed', ''.join(output)))
--
2.21.0