| #!/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 cert.event_stream import EventStream |
| from cert.event_stream import IEventStream |
| from cert.captures import HciCaptures |
| from cert.closable import Closable |
| from cert.closable import safeClose |
| from bluetooth_packets_python3 import hci_packets |
| from cert.truth import assertThat |
| from datetime import timedelta |
| from hci.facade import le_acl_manager_facade_pb2 as le_acl_manager_facade |
| |
| |
| class PyLeAclManagerAclConnection(IEventStream, Closable): |
| |
| def __init__(self, le_acl_manager, address, remote_addr, 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 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.own_address = address |
| self.disconnect_reason = None |
| |
| def close(self): |
| safeClose(self.connection_event_stream) |
| safeClose(self.acl_stream) |
| |
| def wait_for_disconnection_complete(self): |
| disconnection_complete = HciCaptures.DisconnectionCompleteCapture() |
| assertThat(self.connection_event_stream).emits(disconnection_complete) |
| self.disconnect_reason = disconnection_complete.get().GetReason() |
| |
| 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.GetStatus() == hci_packets.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): |
| assertThat(self.next_token in self.outgoing_connection_event_streams).isFalse() |
| self.outgoing_connection_event_streams[self.next_token] = EventStream( |
| self.le_acl_manager.CreateConnection(remote_addr)), remote_addr |
| token = self.next_token |
| self.next_token += 1 |
| return token |
| |
| def initiate_background_and_direct_connection(self, remote_addr): |
| assertThat(self.next_token in self.outgoing_connection_event_streams).isFalse() |
| self.outgoing_connection_event_streams[self.next_token] = EventStream( |
| self.le_acl_manager.CreateBackgroundAndDirectConnection(remote_addr)), remote_addr |
| token = self.next_token |
| self.next_token += 1 |
| return token |
| |
| def complete_connection(self, event_stream): |
| connection_complete = HciCaptures.LeConnectionCompleteCapture() |
| assertThat(event_stream).emits(connection_complete) |
| complete = connection_complete.get() |
| handle = complete.GetConnectionHandle() |
| remote = complete.GetPeerAddress() |
| if complete.GetSubeventCode() == hci_packets.SubeventCode.ENHANCED_CONNECTION_COMPLETE: |
| address = complete.GetLocalResolvablePrivateAddress() |
| else: |
| address = None |
| connection = PyLeAclManagerAclConnection(self.le_acl_manager, address, remote, 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) |