In this test case, an image is signed multiple times with different keys. If any of signatures contained is not verified, the whole authentication check should fail.
Signed-off-by: AKASHI Takahiro takahiro.akashi@linaro.org --- test/py/tests/test_efi_secboot/conftest.py | 9 +++- test/py/tests/test_efi_secboot/test_signed.py | 51 +++++++++++++++++++ 2 files changed, 59 insertions(+), 1 deletion(-)
diff --git a/test/py/tests/test_efi_secboot/conftest.py b/test/py/tests/test_efi_secboot/conftest.py index e7e583bebc92..c7da1a6e29a3 100644 --- a/test/py/tests/test_efi_secboot/conftest.py +++ b/test/py/tests/test_efi_secboot/conftest.py @@ -116,6 +116,10 @@ def efi_boot_env(request, u_boot_config): check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db.crt dbx_hash.crl; %ssign-efi-sig-list -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) + check_call('cd %s; %scert-to-efi-hash-list -g %s -t 0 -s 256 db1.crt dbx_hash1.crl; %ssign-efi-sig-list -c KEK.crt -k KEK.key dbx dbx_hash1.crl dbx_hash1.auth' + % (mnt_point, EFITOOLS_PATH, GUID, EFITOOLS_PATH), + shell=True)
# Copy image check_call('cp %s %s' % (HELLO_PATH, mnt_point), shell=True) @@ -123,7 +127,10 @@ 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) - # Digest image + ## 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 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) diff --git a/test/py/tests/test_efi_secboot/test_signed.py b/test/py/tests/test_efi_secboot/test_signed.py index 6dabecb6694f..1a31a57e12c2 100644 --- a/test/py/tests/test_efi_secboot/test_signed.py +++ b/test/py/tests/test_efi_secboot/test_signed.py @@ -147,3 +147,54 @@ class TestEfiSignedImage(object): 'efidebug test bootmgr']) assert ''HELLO' failed' in ''.join(output) assert 'efi_start_image() returned: 26' in ''.join(output) + + def test_efi_signed_image_auth5(self, u_boot_console, efi_boot_env): + """ + Test Case 5 - multiple signatures + one signed with TEST_db, and + one signed with TEST_db1 + """ + u_boot_console.restart_uboot() + disk_img = efi_boot_env + with u_boot_console.log.section('Test Case 5a'): + # Test Case 5a, rejected if any of signatures is not verified + output = u_boot_console.run_command_list([ + 'host bind 0 %s' % disk_img, + 'fatload host 0:1 4000000 db.auth', + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize db', + 'fatload host 0:1 4000000 KEK.auth', + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize KEK', + 'fatload host 0:1 4000000 PK.auth', + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize PK']) + assert 'Failed to set EFI variable' not in ''.join(output) + output = u_boot_console.run_command_list([ + 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""', + 'efidebug boot next 1', + 'efidebug test bootmgr']) + assert ''HELLO' failed' in ''.join(output) + assert 'efi_start_image() returned: 26' in ''.join(output) + + with u_boot_console.log.section('Test Case 5b'): + # Test Case 5b, authenticated if both signatures are verified + output = u_boot_console.run_command_list([ + 'fatload host 0:1 4000000 db1.auth', + 'setenv -e -nv -bs -rt -at -a -i 4000000,$filesize db']) + assert 'Failed to set EFI variable' not in ''.join(output) + output = u_boot_console.run_command_list([ + 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""', + 'efidebug boot next 1', + 'bootefi bootmgr']) + assert 'Hello, world!' in ''.join(output) + + with u_boot_console.log.section('Test Case 5c'): + # Test Case 5c, rejected if any of signatures is revoked + output = u_boot_console.run_command_list([ + 'fatload host 0:1 4000000 dbx_hash1.auth', + 'setenv -e -nv -bs -rt -at -i 4000000,$filesize dbx']) + assert 'Failed to set EFI variable' not in ''.join(output) + output = u_boot_console.run_command_list([ + 'efidebug boot add 1 HELLO host 0:1 /helloworld.efi.signed_2sigs ""', + 'efidebug boot next 1', + 'efidebug test bootmgr']) + assert ''HELLO' failed' in ''.join(output) + assert 'efi_start_image() returned: 26' in ''.join(output)