| Message ID | 20200717071630.7363-8-takahiro.akashi@linaro.org |
|---|---|
| State | Superseded, archived |
| Delegated to: | Heinrich Schuchardt |
| Headers | show |
| Series | efi_loader: secure boot: support intermediate certificates in signature | expand |
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"). Essentially this patch could have been split into two: * style corrections for existing code * new tests 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 ... 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 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. > > if HELLO_PATH == '': Shouldn't we set HELLO_PATH = 'lib/efi_loader/helloworld.efi' in defs.py and use another variable name here? 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 > +# > + > + > +@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. 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. > + # 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 > + > + > +@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 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) >
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. > 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=== I guess that you are not using the latest source of sbsigntools. > 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. > > > > 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 > > +# > > + > > + > > +@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. -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 > > + > > + > > +@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 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) > > >
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? > >> 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@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. > > >> 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. > >>> >>> 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 >>> +# >>> + >>> + >>> +@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 >>> + >>> + >>> +@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 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) >>> >>
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@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 > >>> +# > >>> + > >>> + > >>> +@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 > >>> + > >>> + > >>> +@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 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) > >>> > >> >
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' if HELLO_PATH == '': HELLO_PATH = u_boot_config.build_dir + '/lib/efi_loader/helloworld.efi' @@ -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 +# + + +@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 == '': + HELLO_PATH = u_boot_config.build_dir + '/lib/efi_loader/helloworld.efi' + + 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) + # 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 + + +@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 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)
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> --- 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