[PATCH v4 7/7] test/py: efi_secboot: add test for intermediate certificates

AKASHI Takahiro
2020-07-20T07:03:46Z

Heinrich,

On Mon, Jul 20, 2020 at 08:29:45AM +0200, Heinrich Schuchardt wrote:
> On 7/20/20 7:52 AM, AKASHI Takahiro wrote:
> > Heinrich,
> >
> > On Fri, Jul 17, 2020 at 12:29:06PM +0200, Heinrich Schuchardt wrote:
> >> On 17.07.20 09:16, AKASHI Takahiro wrote:
> >>> In this test case, an image may have a signature with additional
> >>> intermediate certificates. A chain of trust will be followed and all
> >>> the certificates in the middle of chain must be verified before loading.
> >>>
> >>> Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
> >>
> >> Thanks for providing all these tests and for rebasing on 53ce9a6ed98b6
> >> ("test: use virt-make-fs to build image").
> >
> > You should have run autopep8 before your patch:)
> >
> >> Essentially this patch could have been split into two:
> >>
> >> * style corrections for existing code
> >> * new tests
> >
> > Will split this patch into several commits.
> >
> >> Unfortunatly the setup not working correctly. 'make tests' shows:
> >>
> >> test/py/tests/test_efi_secboot/test_authvar.py FFFFF
> >> test/py/tests/test_efi_secboot/test_signed.py .F..FF
> >> test/py/tests/test_efi_secboot/test_signed_intca.py sss
> >> test/py/tests/test_efi_secboot/test_unsigned.py ...
> >
> > As long as I run the tests in my local environment,
> > I've never seen any failures.
>
> Was that after rebasing on efi-2020-10?

The same result.
(I removed my patch#1-#5 that you added in your efi-2020-10, then
applied my latest patches though.)

> >
> >> SKIPPED [3] test/py/tests/test_efi_secboot/conftest.py:254: Setup
> >> failed: cd build-sandbox/mnt_efisecure; sbsign --key TestCert.key --cert
> >> TestCert.crt --addcert TestSub.crt --out helloworld.efi.signed_ab
> >> helloworld.efi
> >
> > Please read the cover letter:
> > ===8<===
> > Prerequisite
> > ============
> > All the required patches have been merged.
> > You can fetch the whole workable repository from here[1].
> >
> > One patch[2] to sbsigntools must also be applied so that we wil be able
> > to sign an image with intermediate certificates. It is required here for
> > testing.
> >
> > (snip)
> >
> > Test
> > ====
> > - The added new pytest (test_signed_intca.py) passed locally.
> > - Travis CI passed, except the new pytest added here due to a new
> > feature in sbsigntools as mentioned above.
> > (the latest vesion is still running though.)
> > ===>8===
>
> Travis CI skips the tests currently:
>
> test/py/tests/test_efi_secboot/test_authvar.py sssss
> test/py/tests/test_efi_secboot/test_signed.py ssssss
> test/py/tests/test_efi_secboot/test_unsigned.py sss
>
> Tom did not apply
> https://patchwork.ozlabs.org/project/uboot/patch/20200714061856.4487-1-xypron.glpk at gmx.de/
> .
>
> You would have to exchange the Dockerfile at the top of .
>
> >
> > I guess that you are not using the latest source of sbsigntools.
>
> I am using Debian sbsigntool version: 0.9.2-2.
>
> If you want to use any patched version of sbsigntool for testing, you
> will have to proved the necessary patch for the Dockerfile in
> https://gitlab.denx.de/u-boot/gitlab-ci-runner.git
>
> and you will have to build the same sbsigntool for Travis.

Is there any comprehensive document regarding how to manage/maintain
CI loop in U-Boot, covering Travic, Azure and so on?
Otherwise, I don't know the exact scope of responsibility as a developer.

> >
> >
> >> If you replace as follows in test/run you get the extra skip messages:
> >>
> >> %s/--bd/-ra --bd/g
> >>
> >>> ---
> >>> test/py/tests/test_efi_secboot/conftest.py | 134 ++++++++++++++++-
> >>> test/py/tests/test_efi_secboot/defs.py | 8 +-
> >>> test/py/tests/test_efi_secboot/openssl.cnf | 48 +++++++
> >>> .../test_efi_secboot/test_signed_intca.py | 135 ++++++++++++++++++
> >>> 4 files changed, 317 insertions(+), 8 deletions(-)
> >>> create mode 100644 test/py/tests/test_efi_secboot/openssl.cnf
> >>> create mode 100644 test/py/tests/test_efi_secboot/test_signed_intca.py
> >>>
> >>> diff --git a/test/py/tests/test_efi_secboot/conftest.py b/test/py/tests/test_efi_secboot/conftest.py
> >>> index c6709700a876..20d0cbf3ab01 100644
> >>> --- a/test/py/tests/test_efi_secboot/conftest.py
> >>> +++ b/test/py/tests/test_efi_secboot/conftest.py
> >>> @@ -37,7 +37,7 @@ def efi_boot_env(request, u_boot_config):
> >>> global HELLO_PATH
> >>>
> >>> image_path = u_boot_config.persistent_data_dir
> >>> - image_path = image_path + '/' + EFI_SECBOOT_IMAGE_NAME
> >>> + image_path = image_path + '/' + EFI_SECBOOT_IMAGE_NAME + '.img'
> >>
> >> I would prefer a separate constant for
> >> EFI_SECBOOT_IMAGE_NAME + '_intca.img'
> >> to ensure that conftest.py and test_signed_intca.py use the same value.
> >
> > 'separate constant to use the same value?' I don't get your point.
> >
> > Anyhow, *.py files don't use a image file name directly, but
> > get it from a test fixture.
> > So I don't think that we need any change here.
>
> It does not make sense to me to define a constant for half of the file
> name and still relying on the rest to match between the different Python
> tests. Please, provide constants for the whole file names.

Okay, it doesn't matter.

-Takahiro Akashi

> >
> >>>
> >>> if HELLO_PATH == '':
> >>
> >> Shouldn't we set HELLO_PATH = 'lib/efi_loader/helloworld.efi' in defs.py
> >> and use another variable name here?
> >
> > An explicit path is a remnant int the past when helloworld was not
> > compiled properly.
> > So I will delete all the stuff including the code below.
> >
> >> bin_path = u_boot_config.build_dir + '/' + HELLO_PATH
> >>
> >>> HELLO_PATH = u_boot_config.build_dir + '/lib/efi_loader/helloworld.efi'
> >>
> >> Capitalization should only be used for constants.
> >>
> >> Best regards
> >>
> >> Heinrich
> >>
> >>> @@ -87,21 +87,21 @@ def efi_boot_env(request, u_boot_config):
> >>> # db1-update
> >>> check_call('cd %s; %ssign-efi-sig-list -t "2020-04-06" -a -c KEK.crt -k KEK.key db db1.esl db1-update.auth'
> >>> % (mnt_point, EFITOOLS_PATH), shell=True)
> >>> - ## dbx (TEST_dbx certificate)
> >>> + # dbx (TEST_dbx certificate)
> >>> check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_dbx/ -keyout dbx.key -out dbx.crt -nodes -days 365'
> >>> % mnt_point, shell=True)
> >>> check_call('cd %s; %scert-to-efi-sig-list -g %s dbx.crt dbx.esl; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx dbx.esl dbx.auth'
> >>> % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> shell=True)
> >>> - ## dbx_hash (digest of TEST_db certificate)
> >>> + # dbx_hash (digest of TEST_db certificate)
> >>> 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)
> >>> - ## dbx_hash1 (digest of TEST_db1 certificate)
> >>> + # 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 "2020-04-05" -c KEK.crt -k KEK.key dbx dbx_hash1.crl dbx_hash1.auth'
> >>> % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> shell=True)
> >>> - ## dbx_db (with TEST_db certificate)
> >>> + # dbx_db (with TEST_db certificate)
> >>> check_call('cd %s; %ssign-efi-sig-list -t "2020-04-05" -c KEK.crt -k KEK.key dbx db.esl dbx_db.auth'
> >>> % (mnt_point, EFITOOLS_PATH),
> >>> shell=True)
> >>> @@ -112,10 +112,10 @@ def efi_boot_env(request, u_boot_config):
> >>> # Sign image
> >>> check_call('cd %s; sbsign --key db.key --cert db.crt helloworld.efi'
> >>> % mnt_point, shell=True)
> >>> - ## Sign already-signed image with another key
> >>> + # Sign already-signed image with another key
> >>> check_call('cd %s; sbsign --key db1.key --cert db1.crt --output helloworld.efi.signed_2sigs helloworld.efi.signed'
> >>> % mnt_point, shell=True)
> >>> - ## Digest image
> >>> + # Digest image
> >>> check_call('cd %s; %shash-to-efi-sig-list helloworld.efi db_hello.hash; %ssign-efi-sig-list -t "2020-04-07" -c KEK.crt -k KEK.key db db_hello.hash db_hello.auth'
> >>> % (mnt_point, EFITOOLS_PATH, EFITOOLS_PATH),
> >>> shell=True)
> >>> @@ -136,3 +136,123 @@ def efi_boot_env(request, u_boot_config):
> >>> yield image_path
> >>> finally:
> >>> call('rm -f %s' % image_path, shell=True)
> >>> +
> >>> +#
> >>> +# Fixture for UEFI secure boot test of intermediate certificates
> >>> +#
> >>> +
> >>> +
> >>> + at pytest.fixture(scope='session')
> >>> +def efi_boot_env_intca(request, u_boot_config):
> >>> + """Set up a file system to be used in UEFI secure boot test
> >>> + of intermediate certificates.
> >>> +
> >>> + Args:
> >>> + request: Pytest request object.
> >>> + u_boot_config: U-boot configuration.
> >>> +
> >>> + Return:
> >>> + A path to disk image to be used for testing
> >>> + """
> >>> + global HELLO_PATH
> >>> +
> >>> + image_path = u_boot_config.persistent_data_dir
> >>> + image_path = image_path + '/' + EFI_SECBOOT_IMAGE_NAME + '_intca.img'
> >>> +
> >>> + if HELLO_PATH == '':
> >>
> >> See comment above.
> >>
> >>> + HELLO_PATH = u_boot_config.build_dir + '/lib/efi_loader/helloworld.efi'
> >>
> >> Capitalization should only be used for constants.
> >>
> >>> +
> >>> + try:
> >>> + mnt_point = u_boot_config.build_dir + '/mnt_efisecure'
> >>> + check_call('rm -rf {}'.format(mnt_point), shell=True)
> >>> + check_call('mkdir -p {}'.format(mnt_point), shell=True)
> >>> +
> >>> + # Create signature database
> >>> + # PK
> >>> + check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_PK/ -keyout PK.key -out PK.crt -nodes -days 365'
> >>> + % mnt_point, shell=True)
> >>> + check_call('cd %s; %scert-to-efi-sig-list -g %s PK.crt PK.esl; %ssign-efi-sig-list -c PK.crt -k PK.key PK PK.esl PK.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> + # KEK
> >>> + check_call('cd %s; openssl req -x509 -sha256 -newkey rsa:2048 -subj /CN=TEST_KEK/ -keyout KEK.key -out KEK.crt -nodes -days 365'
> >>> + % mnt_point, shell=True)
> >>> + check_call('cd %s; %scert-to-efi-sig-list -g %s KEK.crt KEK.esl; %ssign-efi-sig-list -c PK.crt -k PK.key KEK KEK.esl KEK.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> +
> >>> + # We will have three-tier hierarchy of certificates:
> >>> + # TestRoot: Root CA (self-signed)
> >>> + # TestSub: Intermediate CA (signed by Root CA)
> >>> + # TestCert: User certificate (signed by Intermediate CA, and used
> >>> + # for signing an image)
> >>> + #
> >>> + # NOTE:
> >>> + # I consulted the following EDK2 document for certificate options:
> >>> + # BaseTools/Source/Python/Pkcs7Sign/Readme.md
> >>> + # Please not use them as they are in product system. They are
> >>> + # for test purpose only.
> >>> +
> >>> + # TestRoot
> >>> + check_call('cp %s/test/py/tests/test_efi_secboot/openssl.cnf %s'
> >>> + % (u_boot_config.source_dir, mnt_point), shell=True)
> >>> + check_call('cd %s; openssl genrsa -out TestRoot.key 2048; openssl req --config openssl.cnf -extensions v3_ca -new -x509 -days 365 -key TestRoot.key -out TestRoot.crt -subj "/CN=TEST_root/"; touch index.txt'
> >>> + % mnt_point, shell=True)
> >>> + # TestSub
> >>> + check_call('cd %s; openssl genrsa -out TestSub.key 2048; openssl req -new -key TestSub.key -out TestSub.csr -subj "/CN=TEST_sub/"; openssl ca --config openssl.cnf -in TestSub.csr -out TestSub.crt -extensions v3_int_ca -days 365 -batch -rand_serial -cert TestRoot.crt -keyfile TestRoot.key'
> >>> + % mnt_point, shell=True)
> >>> + # TestCert
> >>> + check_call('cd %s; openssl genrsa -out TestCert.key 2048; openssl req -new -key TestCert.key -out TestCert.csr -subj "/CN=TEST_cert/"; openssl ca --config openssl.cnf -in TestCert.csr -out TestCert.crt -extensions usr_cert -days 365 -batch -rand_serial -cert TestSub.crt -keyfile TestSub.key'
> >>> + % mnt_point, shell=True)
> >>> + # db
> >>> + # for TestCert
> >>> + check_call('cd %s; %scert-to-efi-sig-list -g %s TestCert.crt TestCert.esl; %ssign-efi-sig-list -c KEK.crt -k KEK.key db TestCert.esl db_a.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> + # for TestSub
> >>> + check_call('cd %s; %scert-to-efi-sig-list -g %s TestSub.crt TestSub.esl; %ssign-efi-sig-list -t "2020-07-16" -c KEK.crt -k KEK.key db TestSub.esl db_b.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> + # for TestRoot
> >>> + check_call('cd %s; %scert-to-efi-sig-list -g %s TestRoot.crt TestRoot.esl; %ssign-efi-sig-list -t "2020-07-17" -c KEK.crt -k KEK.key db TestRoot.esl db_c.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> + ## dbx (hash of certificate with revocation time)
> >>> + # for TestCert
> >>> + check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 TestCert.crt TestCert.crl; %ssign-efi-sig-list -c KEK.crt -k KEK.key dbx TestCert.crl dbx_a.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>
> >> Not to be corrected in this patch:
> >>
> >> -t 0 means revocation for all times.
> >
> > The values won't affect the test cases here,
> > but I will add more *meaningful* values.
> >
> >> Shouldn't we have a test that checks that revocation time stamps are
> >> correctly used? As we use explicit timestamps now for sign-efi-sig-list
> >> this should be feasible.
> >
> > Good point, but it's orthogonal to "intermediate certificates" patch.
>
> That is why I wrote "Not to be corrected in this patch".
>
> Best regards
>
> Heinrich
>
> >
> > -Takahiro Akashi
> >
> >
> >
> >>> + # for TestSub
> >>> + check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 TestSub.crt TestSub.crl; %ssign-efi-sig-list -t "2020-07-18" -c KEK.crt -k KEK.key dbx TestSub.crl dbx_b.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> + # for TestRoot
> >>> + check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 TestRoot.crt TestRoot.crl; %ssign-efi-sig-list -t "2020-07-19" -c KEK.crt -k KEK.key dbx TestRoot.crl dbx_c.auth'
> >>> + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH),
> >>> + shell=True)
> >>> +
> >>> + # Sign image
> >>> + # additional intermediate certificates may be included
> >>> + # in SignedData
> >>> +
> >>> + check_call('cp %s %s' % (HELLO_PATH, mnt_point), shell=True)
> >>> + # signed by TestCert
> >>> + check_call('cd %s; %ssbsign --key TestCert.key --cert TestCert.crt --out helloworld.efi.signed_a helloworld.efi'
> >>> + % (mnt_point, SBSIGN_PATH), shell=True)
> >>> + # signed by TestCert with TestSub in signature
> >>> + check_call('cd %s; %ssbsign --key TestCert.key --cert TestCert.crt --addcert TestSub.crt --out helloworld.efi.signed_ab helloworld.efi'
> >>> + % (mnt_point, SBSIGN_PATH), shell=True)
> >>> + # signed by TestCert with TestSub and TestRoot in signature
> >>> + check_call('cd %s; cat TestSub.crt TestRoot.crt > TestSubRoot.crt; %ssbsign --key TestCert.key --cert TestCert.crt --addcert TestSubRoot.crt --out helloworld.efi.signed_abc helloworld.efi'
> >>> + % (mnt_point, SBSIGN_PATH), shell=True)
> >>> +
> >>> + check_call('virt-make-fs --partition=gpt --size=+1M --type=vfat {} {}'.format(mnt_point, image_path), shell=True)
> >>> + check_call('rm -rf {}'.format(mnt_point), shell=True)
> >>> +
> >>> + except CalledProcessError as e:
> >>> + pytest.skip('Setup failed: %s' % e.cmd)
> >>> + return
> >>> + else:
> >>> + yield image_path
> >>> + finally:
> >>> + call('rm -f %s' % image_path, shell=True)
> >>> diff --git a/test/py/tests/test_efi_secboot/defs.py b/test/py/tests/test_efi_secboot/defs.py
> >>> index ba6b9f391e60..a26bbc103cd9 100644
> >>> --- a/test/py/tests/test_efi_secboot/defs.py
> >>> +++ b/test/py/tests/test_efi_secboot/defs.py
> >>> @@ -1,14 +1,20 @@
> >>> # SPDX-License-Identifier: GPL-2.0+
> >>>
> >>> # Disk image name
> >>> -EFI_SECBOOT_IMAGE_NAME = 'test_efi_secboot.img'
> >>> +EFI_SECBOOT_IMAGE_NAME = 'test_efi_secboot'
> >>>
> >>> # Owner guid
> >>> GUID = '11111111-2222-3333-4444-123456789abc'
> >>>
> >>> # v1.5.1 or earlier of efitools has a bug in sha256 calculation, and
> >>> # you need build a newer version on your own.
> >>> +# The path must terminate with '/'.
> >>> EFITOOLS_PATH = ''
> >>>
> >>> +# "--addcert" option of sbsign must be available, otherwise
> >>> +# you need build a newer version on your own.
> >>> +# The path must terminate with '/'.
> >>> +SBSIGN_PATH = ''
> >>> +
> >>> # Hello World application for sandbox
> >>> HELLO_PATH = ''
> >>> diff --git a/test/py/tests/test_efi_secboot/openssl.cnf b/test/py/tests/test_efi_secboot/openssl.cnf
> >>> new file mode 100644
> >>> index 000000000000..f684f1df7e69
> >>> --- /dev/null
> >>> +++ b/test/py/tests/test_efi_secboot/openssl.cnf
> >>> @@ -0,0 +1,48 @@
> >>> +[ ca ]
> >>> +default_ca = CA_default
> >>> +
> >>> +[ CA_default ]
> >>> +new_certs_dir = .
> >>> +database = ./index.txt
> >>> +serial = ./serial
> >>> +default_md = sha256
> >>> +policy = policy_min
> >>> +
> >>> +[ req ]
> >>> +distinguished_name = def_distinguished_name
> >>> +
> >>> +[def_distinguished_name]
> >>> +
> >>> +# Extensions
> >>> +# -addext " ... = ..."
> >>> +#
> >>> +[ v3_ca ]
> >>> + # Extensions for a typical Root CA.
> >>> + basicConstraints = critical,CA:TRUE
> >>> + keyUsage = critical, digitalSignature, cRLSign, keyCertSign
> >>> + subjectKeyIdentifier = hash
> >>> + authorityKeyIdentifier = keyid:always,issuer
> >>> +
> >>> +[ v3_int_ca ]
> >>> + # Extensions for a typical intermediate CA.
> >>> + basicConstraints = critical, CA:TRUE
> >>> + keyUsage = critical, digitalSignature, cRLSign, keyCertSign
> >>> + subjectKeyIdentifier = hash
> >>> + authorityKeyIdentifier = keyid:always,issuer
> >>> +
> >>> +[ usr_cert ]
> >>> + # Extensions for user end certificates.
> >>> + basicConstraints = CA:FALSE
> >>> + keyUsage = critical, nonRepudiation, digitalSignature, keyEncipherment
> >>> + extendedKeyUsage = clientAuth, emailProtection
> >>> + subjectKeyIdentifier = hash
> >>> + authorityKeyIdentifier = keyid,issuer
> >>> +
> >>> +[ policy_min ]
> >>> + countryName = optional
> >>> + stateOrProvinceName = optional
> >>> + localityName = optional
> >>> + organizationName = optional
> >>> + organizationalUnitName = optional
> >>> + commonName = supplied
> >>> + emailAddress = optional
> >>> diff --git a/test/py/tests/test_efi_secboot/test_signed_intca.py b/test/py/tests/test_efi_secboot/test_signed_intca.py
> >>> new file mode 100644
> >>> index 000000000000..1240174758cf
> >>> --- /dev/null
> >>> +++ b/test/py/tests/test_efi_secboot/test_signed_intca.py
> >>> @@ -0,0 +1,135 @@
> >>> +# SPDX-License-Identifier: GPL-2.0+
> >>> +# Copyright (c) 2020, Linaro Limited
> >>> +# Author: AKASHI Takahiro <takahiro.akashi@linaro.org>
> >>> +#
> >>> +# U-Boot UEFI: Image Authentication Test (signature with certificates chain)
> >>> +
> >>> +"""
> >>> +This test verifies image authentication for a signed image which is signed
> >>> +by user certificate and contains additional intermediate certificates in its
> >>> +signature.
> >>> +"""
> >>> +
> >>> +import pytest
> >>> +
> >>> +
> >>> + 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 TestEfiSignedImageExt(object):
> >>> + def test_efi_signed_image_ext1(self, u_boot_console, efi_boot_env_intca):
> >>> + """
> >>> + Test Case 1 - authenticated by root CA in db
> >>> + """
> >>> + u_boot_console.restart_uboot()
> >>> + disk_img = efi_boot_env_intca
> >>> + with u_boot_console.log.section('Test Case 1a'):
> >>> + # Test Case 1a, with no Int CA and not authenticated by root CA
> >>> + output = u_boot_console.run_command_list([
> >>> + 'host bind 0 %s' % disk_img,
> >>> + 'fatload host 0:1 4000000 db_c.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,$filesize PK'])
> >>> + assert 'Failed to set EFI variable' not in ''.join(output)
> >>> +
> >>> + output = u_boot_console.run_command_list([
> >>> + 'efidebug boot add 1 HELLO_a host 0:1 /helloworld.efi.signed_a ""',
> >>> + 'efidebug boot next 1',
> >>> + 'efidebug test bootmgr'])
> >>> + assert '\'HELLO_a\' failed' in ''.join(output)
> >>> + assert 'efi_start_image() returned: 26' in ''.join(output)
> >>> +
> >>> + with u_boot_console.log.section('Test Case 1b'):
> >>> + # Test Case 1b, signed and authenticated by root CA
> >>> + output = u_boot_console.run_command_list([
> >>> + 'efidebug boot add 2 HELLO_ab host 0:1 /helloworld.efi.signed_ab ""',
> >>> + 'efidebug boot next 2',
> >>> + 'bootefi bootmgr'])
> >>> + assert 'Hello, world!' in ''.join(output)
> >>> +
> >>> + def test_efi_signed_image_ext2(self, u_boot_console, efi_boot_env_intca):
> >>> + """
> >>> + Test Case 2 - authenticated by root CA in db
> >>> + """
> >>> + u_boot_console.restart_uboot()
> >>> + disk_img = efi_boot_env_intca
> >>> + with u_boot_console.log.section('Test Case 2a'):
> >>> + # Test Case 2a, unsigned and not authenticated by root CA
> >>> + output = u_boot_console.run_command_list([
> >>> + 'host bind 0 %s' % disk_img,
> >>> + 'fatload host 0:1 4000000 KEK.auth',
> >>> + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK',
> >>> + 'fatload host 0:1 4000000 PK.auth',
> >>> + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK'])
> >>> + assert 'Failed to set EFI variable' not in ''.join(output)
> >>> +
> >>> + output = u_boot_console.run_command_list([
> >>> + 'efidebug boot add 1 HELLO_abc host 0:1 /helloworld.efi.signed_abc ""',
> >>> + 'efidebug boot next 1',
> >>> + 'efidebug test bootmgr'])
> >>> + assert '\'HELLO_abc\' failed' in ''.join(output)
> >>> + assert 'efi_start_image() returned: 26' in ''.join(output)
> >>> +
> >>> + with u_boot_console.log.section('Test Case 2b'):
> >>> + # Test Case 2b, signed and authenticated by root CA
> >>> + output = u_boot_console.run_command_list([
> >>> + 'fatload host 0:1 4000000 db_b.auth',
> >>> + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
> >>> + 'efidebug boot next 1',
> >>> + 'efidebug test bootmgr'])
> >>> + assert '\'HELLO_abc\' failed' in ''.join(output)
> >>> + assert 'efi_start_image() returned: 26' in ''.join(output)
> >>> +
> >>> + with u_boot_console.log.section('Test Case 2c'):
> >>> + # Test Case 2c, signed and authenticated by root CA
> >>> + output = u_boot_console.run_command_list([
> >>> + 'fatload host 0:1 4000000 db_c.auth',
> >>> + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db',
> >>> + 'efidebug boot next 1',
> >>> + 'efidebug test bootmgr'])
> >>> + assert 'Hello, world!' in ''.join(output)
> >>> +
> >>> + def test_efi_signed_image_ext3(self, u_boot_console, efi_boot_env_intca):
> >>> + """
> >>> + Test Case 3 - revoked by dbx
> >>> + """
> >>> + u_boot_console.restart_uboot()
> >>> + disk_img = efi_boot_env_intca
> >>> + with u_boot_console.log.section('Test Case 3a'):
> >>> + # Test Case 3a, revoked by int CA in dbx
> >>> + output = u_boot_console.run_command_list([
> >>> + 'host bind 0 %s' % disk_img,
> >>> + 'fatload host 0:1 4000000 dbx_b.auth',
> >>> + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx',
> >>> + 'fatload host 0:1 4000000 db_c.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,$filesize PK'])
> >>> + assert 'Failed to set EFI variable' not in ''.join(output)
> >>> +
> >>> + output = u_boot_console.run_command_list([
> >>> + 'efidebug boot add 1 HELLO_abc host 0:1 /helloworld.efi.signed_abc ""',
> >>> + 'efidebug boot next 1',
> >>> + 'efidebug test bootmgr'])
> >>> + assert 'Hello, world!' in ''.join(output)
> >>> + # Or,
> >>> + # assert '\'HELLO_abc\' failed' in ''.join(output)
> >>> + # assert 'efi_start_image() returned: 26' in ''.join(output)
> >>> +
> >>> + with u_boot_console.log.section('Test Case 3b'):
> >>> + # Test Case 3b, revoked by root CA in dbx
> >>> + output = u_boot_console.run_command_list([
> >>> + 'fatload host 0:1 4000000 dbx_c.auth',
> >>> + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx',
> >>> + 'efidebug boot next 1',
> >>> + 'efidebug test bootmgr'])
> >>> + assert '\'HELLO_abc\' failed' in ''.join(output)
> >>> + assert 'efi_start_image() returned: 26' in ''.join(output)
> >>>
> >>
>