260 lines
12 KiB
Python
260 lines
12 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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#
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# U-Boot UEFI: Signed Image Authentication Test
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"""
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This test verifies image authentication for signed images.
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"""
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import pytest
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@pytest.mark.boardspec('sandbox')
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@pytest.mark.buildconfigspec('efi_secure_boot')
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@pytest.mark.buildconfigspec('cmd_efidebug')
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@pytest.mark.buildconfigspec('cmd_fat')
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@pytest.mark.buildconfigspec('cmd_nvedit_efi')
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@pytest.mark.slow
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class TestEfiSignedImage(object):
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def test_efi_signed_image_auth1(self, u_boot_console, efi_boot_env):
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"""
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Test Case 1 - Secure boot is not in force
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"""
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u_boot_console.restart_uboot()
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disk_img = efi_boot_env
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with u_boot_console.log.section('Test Case 1a'):
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# Test Case 1a, run signed image if no PK
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output = u_boot_console.run_command_list([
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'host bind 0 %s' % disk_img,
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'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""',
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'efidebug boot next 1',
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'bootefi bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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with u_boot_console.log.section('Test Case 1b'):
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# Test Case 1b, run unsigned image if no PK
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output = u_boot_console.run_command_list([
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'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""',
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'efidebug boot next 2',
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'bootefi bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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def test_efi_signed_image_auth2(self, u_boot_console, efi_boot_env):
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"""
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Test Case 2 - Secure boot is in force,
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authenticated by db (TEST_db certificate in db)
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"""
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u_boot_console.restart_uboot()
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disk_img = efi_boot_env
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with u_boot_console.log.section('Test Case 2a'):
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# Test Case 2a, db is not yet installed
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output = u_boot_console.run_command_list([
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'host bind 0 %s' % disk_img,
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'fatload host 0:1 4000000 KEK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK',
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'fatload host 0:1 4000000 PK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot add 1 HELLO1 host 0:1 /helloworld.efi.signed ""',
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert('\'HELLO1\' failed' in ''.join(output))
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assert('efi_start_image() returned: 26' in ''.join(output))
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output = u_boot_console.run_command_list([
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'efidebug boot add 2 HELLO2 host 0:1 /helloworld.efi ""',
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'efidebug boot next 2',
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'efidebug test bootmgr'])
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assert '\'HELLO2\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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with u_boot_console.log.section('Test Case 2b'):
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# Test Case 2b, authenticated by db
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize db'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 2',
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'efidebug test bootmgr'])
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assert '\'HELLO2\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'bootefi bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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def test_efi_signed_image_auth3(self, u_boot_console, efi_boot_env):
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"""
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Test Case 3 - rejected by dbx (TEST_db certificate in dbx)
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"""
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u_boot_console.restart_uboot()
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disk_img = efi_boot_env
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with u_boot_console.log.section('Test Case 3a'):
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# Test Case 3a, rejected by dbx
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output = u_boot_console.run_command_list([
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'host bind 0 %s' % disk_img,
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'fatload host 0:1 4000000 db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx',
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'fatload host 0:1 4000000 KEK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK',
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'fatload host 0:1 4000000 PK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""',
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert '\'HELLO\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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with u_boot_console.log.section('Test Case 3b'):
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# Test Case 3b, rejected by dbx even if db allows
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize db'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert '\'HELLO\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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def test_efi_signed_image_auth4(self, u_boot_console, efi_boot_env):
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"""
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Test Case 4 - revoked by dbx (digest of TEST_db certificate in dbx)
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"""
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u_boot_console.restart_uboot()
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disk_img = efi_boot_env
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with u_boot_console.log.section('Test Case 4'):
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# Test Case 4, rejected by dbx
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output = u_boot_console.run_command_list([
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'host bind 0 %s' % disk_img,
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'fatload host 0:1 4000000 dbx_hash.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx',
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'fatload host 0:1 4000000 db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize db',
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'fatload host 0:1 4000000 KEK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK',
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'fatload host 0:1 4000000 PK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""',
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert '\'HELLO\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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def test_efi_signed_image_auth5(self, u_boot_console, efi_boot_env):
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"""
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Test Case 5 - multiple signatures
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one signed with TEST_db, and
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one signed with TEST_db1
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"""
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u_boot_console.restart_uboot()
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disk_img = efi_boot_env
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with u_boot_console.log.section('Test Case 5a'):
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# Test Case 5a, authenticated even if only one of signatures
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# is verified
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output = u_boot_console.run_command_list([
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'host bind 0 %s' % disk_img,
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'fatload host 0:1 4000000 db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize db',
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'fatload host 0:1 4000000 KEK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK',
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'fatload host 0:1 4000000 PK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""',
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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with u_boot_console.log.section('Test Case 5b'):
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# Test Case 5b, authenticated if both signatures are verified
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 db1.auth',
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'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize db'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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with u_boot_console.log.section('Test Case 5c'):
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# Test Case 5c, not rejected if one of signatures (digest of
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# certificate) is revoked
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 dbx_hash.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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with u_boot_console.log.section('Test Case 5d'):
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# Test Case 5d, rejected if both of signatures are revoked
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 dbx_hash1.auth',
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'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize dbx'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert '\'HELLO\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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def test_efi_signed_image_auth6(self, u_boot_console, efi_boot_env):
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"""
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Test Case 6 - using digest of signed image in database
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"""
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u_boot_console.restart_uboot()
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disk_img = efi_boot_env
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with u_boot_console.log.section('Test Case 6a'):
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# Test Case 6a, verified by image's digest in db
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output = u_boot_console.run_command_list([
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'host bind 0 %s' % disk_img,
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'fatload host 0:1 4000000 db_hello_signed.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize db',
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'fatload host 0:1 4000000 KEK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize KEK',
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'fatload host 0:1 4000000 PK.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize PK'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed ""',
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'efidebug boot next 1',
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'bootefi bootmgr'])
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assert 'Hello, world!' in ''.join(output)
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with u_boot_console.log.section('Test Case 6b'):
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# Test Case 6b, rejected by TEST_db certificate in dbx
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 dbx_db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert '\'HELLO\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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with u_boot_console.log.section('Test Case 6c'):
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# Test Case 6c, rejected by image's digest in dbx
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output = u_boot_console.run_command_list([
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'fatload host 0:1 4000000 db.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize db',
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'fatload host 0:1 4000000 dbx_hello_signed.auth',
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'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx'])
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assert 'Failed to set EFI variable' not in ''.join(output)
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output = u_boot_console.run_command_list([
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'efidebug boot next 1',
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'efidebug test bootmgr'])
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assert '\'HELLO\' failed' in ''.join(output)
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assert 'efi_start_image() returned: 26' in ''.join(output)
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