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#
# Copyright (C) 2019 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import os
import os.path
import apex_utils
import common
import test_utils
class ApexUtilsTest(test_utils.ReleaseToolsTestCase):
# echo "foo" | sha256sum
SALT = 'b5bb9d8014a0f9b1d61e21e796d78dccdf1352f23cd32812f4850b878ae4944c'
def setUp(self):
self.testdata_dir = test_utils.get_testdata_dir()
# The default payload signing key.
self.payload_key = os.path.join(self.testdata_dir, 'testkey.key')
@staticmethod
def _GetTestPayload():
payload_file = common.MakeTempFile(prefix='apex-', suffix='.img')
with open(payload_file, 'wb') as payload_fp:
payload_fp.write(os.urandom(8192))
return payload_file
@test_utils.SkipIfExternalToolsUnavailable()
def test_ParseApexPayloadInfo(self):
payload_file = self._GetTestPayload()
apex_utils.SignApexPayload(
'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048',
self.SALT, no_hashtree=True)
payload_info = apex_utils.ParseApexPayloadInfo('avbtool', payload_file)
self.assertEqual('SHA256_RSA2048', payload_info['Algorithm'])
self.assertEqual(self.SALT, payload_info['Salt'])
self.assertEqual('testkey', payload_info['apex.key'])
self.assertEqual('0 bytes', payload_info['Tree Size'])
@test_utils.SkipIfExternalToolsUnavailable()
def test_SignApexPayload(self):
payload_file = self._GetTestPayload()
apex_utils.SignApexPayload(
'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048',
self.SALT, no_hashtree=True)
apex_utils.VerifyApexPayload(
'avbtool', payload_file, self.payload_key, True)
@test_utils.SkipIfExternalToolsUnavailable()
def test_SignApexPayload_withHashtree(self):
payload_file = self._GetTestPayload()
apex_utils.SignApexPayload(
'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048',
self.SALT, no_hashtree=False)
apex_utils.VerifyApexPayload('avbtool', payload_file, self.payload_key)
payload_info = apex_utils.ParseApexPayloadInfo('avbtool', payload_file)
self.assertEqual('4096 bytes', payload_info['Tree Size'])
@test_utils.SkipIfExternalToolsUnavailable()
def test_SignApexPayload_noHashtree(self):
payload_file = self._GetTestPayload()
apex_utils.SignApexPayload(
'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048',
self.SALT, no_hashtree=True)
apex_utils.VerifyApexPayload('avbtool', payload_file, self.payload_key,
no_hashtree=True)
payload_info = apex_utils.ParseApexPayloadInfo('avbtool', payload_file)
self.assertEqual('0 bytes', payload_info['Tree Size'])
@test_utils.SkipIfExternalToolsUnavailable()
def test_SignApexPayload_withSignerHelper(self):
payload_file = self._GetTestPayload()
signing_helper = os.path.join(self.testdata_dir, 'signing_helper.sh')
os.chmod(signing_helper, 0o700)
payload_signer_args = '--signing_helper_with_files {}'.format(
signing_helper)
apex_utils.SignApexPayload(
'avbtool',
payload_file,
self.payload_key,
'testkey', 'SHA256_RSA2048', self.SALT,
True,
payload_signer_args)
apex_utils.VerifyApexPayload(
'avbtool', payload_file, self.payload_key, True)
@test_utils.SkipIfExternalToolsUnavailable()
def test_SignApexPayload_invalidKey(self):
self.assertRaises(
apex_utils.ApexSigningError,
apex_utils.SignApexPayload,
'avbtool',
self._GetTestPayload(),
os.path.join(self.testdata_dir, 'testkey.x509.pem'),
'testkey',
'SHA256_RSA2048',
self.SALT,
no_hashtree=True)
@test_utils.SkipIfExternalToolsUnavailable()
def test_VerifyApexPayload_wrongKey(self):
payload_file = self._GetTestPayload()
apex_utils.SignApexPayload(
'avbtool', payload_file, self.payload_key, 'testkey', 'SHA256_RSA2048',
self.SALT, True)
apex_utils.VerifyApexPayload(
'avbtool', payload_file, self.payload_key, True)
self.assertRaises(
apex_utils.ApexSigningError,
apex_utils.VerifyApexPayload,
'avbtool',
payload_file,
os.path.join(self.testdata_dir, 'testkey_with_passwd.key'),
no_hashtree=True)
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