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test/py: Add more test cases for rejecting an EFI image

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The previous patch adds support for rejecting images when the sha384/512
of an x.509 certificate is present in dbx.  Update the sandbox selftests

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Ilias Apalodimas 2022-05-06 15:36:01 +03:00 committed by Heinrich Schuchardt
parent b436cc6a57
commit 4b49477057
2 changed files with 57 additions and 0 deletions
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6
test/py/tests/test_efi_secboot/conftest.py
View File

@ -80,6 +80,12 @@ def efi_boot_env(request, u_boot_config):
check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db.crt dbx_hash.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash.crl dbx_hash.auth'
% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
shell=True)
check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 384 db.crt dbx_hash384.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash384.crl dbx_hash384.auth'
% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
shell=True)
check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 512 db.crt dbx_hash512.crl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash512.crl dbx_hash512.auth'
% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
shell=True)
# dbx_hash1 (digest of TEST_db1 certificate)
check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db1.crt dbx_hash1.crl; %ssign-efi-sig-list -t "2020-04-06" -c KEK.crt -k KEK.key dbx dbx_hash1.crl dbx_hash1.auth'
% (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),

51
test/py/tests/test_efi_secboot/test_signed.py
View File

@ -283,3 +283,54 @@ class TestEfiSignedImage(object):
'efidebug test bootmgr'])
assert '\'HELLO\' failed' in ''.join(output)
assert 'efi_start_image() returned: 26' in ''.join(output)
def test_efi_signed_image_auth7(self, u_boot_console, efi_boot_env):
"""
Test Case 7 - Reject images based on the sha384/512 of their x509 cert
"""
# sha384 of an x509 cert in dbx
u_boot_console.restart_uboot()
disk_img = efi_boot_env
with u_boot_console.log.section('Test Case 7a'):
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:$filesize PK',
'fatload host 0:1 4000000 db1.auth',
'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize db',
'fatload host 0:1 4000000 dbx_hash384.auth',
'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx'])
assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([
'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed_2sigs -s ""',
'efidebug boot next 1',
'efidebug test bootmgr'])
assert '\'HELLO\' failed' in ''.join(output)
assert 'efi_start_image() returned: 26' in ''.join(output)
# sha512 of an x509 cert in dbx
u_boot_console.restart_uboot()
with u_boot_console.log.section('Test Case 7b'):
output = u_boot_console.run_command_list([
'host bind 0 %s' % disk_img,
'fatload host 0:1 4000000 db.auth',
'setenv -e -nv -bs -rt -at -i 4000000:$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',
'fatload host 0:1 4000000 db1.auth',
'setenv -e -nv -bs -rt -at -a -i 4000000:$filesize db',
'fatload host 0:1 4000000 dbx_hash512.auth',
'setenv -e -nv -bs -rt -at -i 4000000:$filesize dbx'])
assert 'Failed to set EFI variable' not in ''.join(output)
output = u_boot_console.run_command_list([
'efidebug boot add -b 1 HELLO host 0:1 /helloworld.efi.signed_2sigs -s ""',
'efidebug boot next 1',
'efidebug test bootmgr'])
assert '\'HELLO\' failed' in ''.join(output)
assert 'efi_start_image() returned: 26' in ''.join(output)