#!/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. from google.protobuf import empty_pb2 as empty_proto from blueberry.tests.gd.cert.event_stream import EventStream from blueberry.tests.gd.cert.event_stream import IEventStream from blueberry.tests.gd.cert.captures import HciCaptures from blueberry.tests.gd.cert.closable import Closable from blueberry.tests.gd.cert.closable import safeClose from blueberry.tests.gd.cert.truth import assertThat from datetime import timedelta from blueberry.facade.hci import le_acl_manager_facade_pb2 as le_acl_manager_facade import hci_packets as hci class PyLeAclManagerAclConnection(IEventStream, Closable): def __init__(self, le_acl_manager, address, remote_addr, remote_addr_type, handle, event_stream): """ An abstract representation for an LE ACL connection in GD certification test :param le_acl_manager: The LeAclManager from this GD device :param address: The local device address :param remote_addr: Remote device address :param remote_addr_type: Remote device address type :param handle: Connection handle :param event_stream: The connection event stream for this connection """ self.le_acl_manager = le_acl_manager # todo enable filtering after sorting out handles # self.our_acl_stream = FilteringEventStream(acl_stream, None) self.handle = handle self.connection_event_stream = event_stream self.acl_stream = EventStream( self.le_acl_manager.FetchAclData(le_acl_manager_facade.LeHandleMsg(handle=self.handle))) self.remote_address = remote_addr self.remote_address_type = remote_addr_type self.own_address = address self.disconnect_reason = None def close(self): safeClose(self.connection_event_stream) safeClose(self.acl_stream) def disconnect(self): self.le_acl_manager.Disconnect(le_acl_manager_facade.LeHandleMsg(handle=self.handle)) def wait_for_disconnection_complete(self, timeout=timedelta(seconds=30)): disconnection_complete = HciCaptures.DisconnectionCompleteCapture() assertThat(self.connection_event_stream).emits(disconnection_complete, timeout=timeout) self.disconnect_reason = disconnection_complete.get().reason def send(self, data): self.le_acl_manager.SendAclData(le_acl_manager_facade.LeAclData(handle=self.handle, payload=bytes(data))) def get_event_queue(self): return self.acl_stream.get_event_queue() class PyLeAclManager(Closable): def __init__(self, device): """ LE ACL Manager for GD Certification test :param device: The GD device """ self.le_acl_manager = device.hci_le_acl_manager self.incoming_connection_event_stream = None self.outgoing_connection_event_streams = {} self.active_connections = [] self.next_token = 1 def close(self): safeClose(self.incoming_connection_event_stream) for v in self.outgoing_connection_event_streams.values(): safeClose(v[0]) for connection in self.active_connections: safeClose(connection) def listen_for_incoming_connections(self): assertThat(self.incoming_connection_event_stream).isNone() self.incoming_connection_event_stream = EventStream( self.le_acl_manager.FetchIncomingConnection(empty_proto.Empty())) def connect_to_remote(self, remote_addr): token = self.initiate_connection(remote_addr) return self.complete_outgoing_connection(token) def wait_for_connection(self): self.listen_for_incoming_connections() return self.complete_incoming_connection() def wait_for_connection_fail(self, token): assertThat(self.outgoing_connection_event_streams[token]).isNotNone() event_stream = self.outgoing_connection_event_streams[token][0] connection_fail = HciCaptures.LeConnectionCompleteCapture() assertThat(event_stream).emits(connection_fail, timeout=timedelta(seconds=35)) complete = connection_fail.get() assertThat(complete.status == hci.ErrorCode.CONNECTION_ACCEPT_TIMEOUT).isTrue() def cancel_connection(self, token): assertThat(token in self.outgoing_connection_event_streams).isTrue() pair = self.outgoing_connection_event_streams.pop(token) safeClose(pair[0]) self.le_acl_manager.CancelConnection(pair[1]) def initiate_connection(self, remote_addr, is_direct=True): assertThat(self.next_token in self.outgoing_connection_event_streams).isFalse() create_connection_msg = le_acl_manager_facade.CreateConnectionMsg(peer_address=remote_addr, is_direct=is_direct) self.outgoing_connection_event_streams[self.next_token] = EventStream( self.le_acl_manager.CreateConnection(create_connection_msg)), remote_addr token = self.next_token self.next_token += 1 return token def is_on_background_list(self, remote_addr): return self.le_acl_manager.IsOnBackgroundList( le_acl_manager_facade.BackgroundRequestMsg(peer_address=remote_addr)) def remove_from_background_list(self, remote_addr): self.le_acl_manager.RemoveFromBackgroundList( le_acl_manager_facade.BackgroundRequestMsg(peer_address=remote_addr)) def complete_connection(self, event_stream): connection_complete = HciCaptures.LeConnectionCompleteCapture() assertThat(event_stream).emits(connection_complete) complete = connection_complete.get() handle = complete.connection_handle remote = repr(complete.peer_address) remote_address_type = complete.peer_address_type if complete.subevent_code == hci.SubeventCode.ENHANCED_CONNECTION_COMPLETE: address = complete.local_resolvable_private_address else: address = None connection = PyLeAclManagerAclConnection(self.le_acl_manager, address, remote, remote_address_type, handle, event_stream) self.active_connections.append(connection) return connection def complete_incoming_connection(self): assertThat(self.incoming_connection_event_stream).isNotNone() event_stream = self.incoming_connection_event_stream self.incoming_connection_event_stream = None return self.complete_connection(event_stream) def complete_outgoing_connection(self, token): assertThat(self.outgoing_connection_event_streams[token]).isNotNone() event_stream = self.outgoing_connection_event_streams.pop(token)[0] return self.complete_connection(event_stream)