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#!/usr/bin/env python3
#
# Copyright 2020 - 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 logging
from bluetooth_packets_python3 import hci_packets
from cert.captures import SecurityCaptures
from cert.closable import Closable
from cert.closable import safeClose
from cert.event_stream import EventStream
from cert.matchers import SecurityMatchers
from cert.truth import assertThat
from datetime import timedelta
from facade import common_pb2 as common
from google.protobuf import empty_pb2 as empty_proto
from security.facade_pb2 import IoCapabilityMessage
from security.facade_pb2 import AuthenticationRequirementsMessage
from security.facade_pb2 import LeAuthRequirementsMessage
from security.facade_pb2 import OobDataPresentMessage
from security.facade_pb2 import UiCallbackMsg
from security.facade_pb2 import UiCallbackType
from security.facade_pb2 import HelperMsgType
class PyLeSecurity(Closable):
"""
Abstraction for security tasks and GRPC calls
"""
_ui_event_stream = None
_bond_event_stream = None
_helper_event_stream = None
def __init__(self, device):
logging.info("DUT: Init")
self._device = device
self._device.wait_channel_ready()
self._ui_event_stream = EventStream(self._device.security.FetchUiEvents(empty_proto.Empty()))
self._bond_event_stream = EventStream(self._device.security.FetchBondEvents(empty_proto.Empty()))
self._helper_event_stream = EventStream(self._device.security.FetchHelperEvents(empty_proto.Empty()))
def get_ui_stream(self):
return self._ui_event_stream
def get_bond_stream(self):
return self._bond_event_stream
def wait_for_ui_event_passkey(self, timeout=timedelta(seconds=3)):
display_passkey_capture = SecurityCaptures.DisplayPasskey()
assertThat(self._ui_event_stream).emits(display_passkey_capture, timeout=timeout)
return display_passkey_capture.get()
def wait_device_disconnect(self, address):
assertThat(self._helper_event_stream).emits(
SecurityMatchers.HelperMsg(HelperMsgType.DEVICE_DISCONNECTED, address))
def SetLeAuthRequirements(self, *args, **kwargs):
return self._device.security.SetLeAuthRequirements(LeAuthRequirementsMessage(*args, **kwargs))
def close(self):
if self._ui_event_stream is not None:
safeClose(self._ui_event_stream)
else:
logging.info("DUT: UI Event Stream is None!")
if self._bond_event_stream is not None:
safeClose(self._bond_event_stream)
else:
logging.info("DUT: Bond Event Stream is None!")
if self._helper_event_stream is not None:
safeClose(self._helper_event_stream)
else:
logging.info("DUT: Helper Event Stream is None!")