예제 #1
0
 def _prepare_cert_for_connection(self):
     # DUT Advertises
     gap_name = hci_packets.GapData()
     gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
     gap_name.data = list(bytes(b'Im_The_CERT'))
     gap_data = le_advertising_facade.GapDataMsg(
         data=bytes(gap_name.Serialize()))
     config = le_advertising_facade.AdvertisingConfig(
         advertisement=[gap_data],
         random_address=self.cert_address.address,
         interval_min=512,
         interval_max=768,
         event_type=le_advertising_facade.AdvertisingEventType.ADV_IND,
         address_type=common.RANDOM_DEVICE_ADDRESS,
         peer_address_type=common.PUBLIC_DEVICE_ADDRESS,
         peer_address=common.BluetoothAddress(
             address=bytes(b'00:00:00:00:00:00')),
         channel_map=7,
         filter_policy=le_advertising_facade.AdvertisingFilterPolicy.
         ALL_DEVICES)
     request = le_advertising_facade.CreateAdvertiserRequest(config=config)
     create_response = self.cert.hci_le_advertising_manager.CreateAdvertiser(
         request)
예제 #2
0
 def _set_link_from_dut_and_open_channel(self,
                                         signal_id=1,
                                         scid=0x0101,
                                         psm=0x33,
                                         mtu=1000,
                                         mps=100,
                                         initial_credit=6):
     # Cert Advertises
     gap_name = hci_packets.GapData()
     gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
     gap_name.data = list(bytes(b'Im_The_DUT'))
     gap_data = le_advertising_facade.GapDataMsg(
         data=bytes(gap_name.Serialize()))
     config = le_advertising_facade.AdvertisingConfig(
         advertisement=[gap_data],
         random_address=self.cert_address.address,
         interval_min=512,
         interval_max=768,
         event_type=le_advertising_facade.AdvertisingEventType.ADV_IND,
         address_type=common.RANDOM_DEVICE_ADDRESS,
         peer_address_type=common.PUBLIC_DEVICE_ADDRESS,
         peer_address=common.BluetoothAddress(
             address=bytes(b'00:00:00:00:00:00')),
         channel_map=7,
         filter_policy=le_advertising_facade.AdvertisingFilterPolicy.
         ALL_DEVICES)
     request = le_advertising_facade.CreateAdvertiserRequest(config=config)
     create_response = self.cert.hci_le_advertising_manager.CreateAdvertiser(
         request)
     response_future = self.dut_l2cap.connect_coc_to_cert(
         self.cert_address, psm)
     self.cert_l2cap.wait_for_connection()
     # TODO: Currently we can only connect by using Dynamic channel API. Use fixed channel instead.
     cert_channel = self.cert_l2cap.verify_and_respond_open_channel_from_remote(
         psm)
     dut_channel = response_future.get_channel()
     return (dut_channel, cert_channel)
    def test_le_ad_scan_dut_scans(self):
        privacy_policy = le_initiator_address_facade.PrivacyPolicy(
            address_policy=le_initiator_address_facade.AddressPolicy.
            USE_STATIC_ADDRESS,
            address_with_type=common.BluetoothAddressWithType(
                address=common.BluetoothAddress(
                    address=bytes(b'D0:05:04:03:02:01')),
                type=common.RANDOM_DEVICE_ADDRESS),
            rotation_irk=
            b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
            minimum_rotation_time=0,
            maximum_rotation_time=0)
        self.dut.hci_le_initiator_address.SetPrivacyPolicyForInitiatorAddress(
            privacy_policy)
        cert_privacy_policy = le_initiator_address_facade.PrivacyPolicy(
            address_policy=le_initiator_address_facade.AddressPolicy.
            USE_STATIC_ADDRESS,
            address_with_type=common.BluetoothAddressWithType(
                address=common.BluetoothAddress(
                    address=bytes(b'C0:05:04:03:02:01')),
                type=common.RANDOM_DEVICE_ADDRESS),
            rotation_irk=
            b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00',
            minimum_rotation_time=0,
            maximum_rotation_time=0)
        self.cert.hci_le_initiator_address.SetPrivacyPolicyForInitiatorAddress(
            cert_privacy_policy)
        with EventStream(
                # DUT Scans
                self.dut.hci_le_scanning_manager.StartScan(
                    empty_proto.Empty())) as advertising_event_stream:

            # CERT Advertises
            gap_name = hci_packets.GapData()
            gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
            gap_name.data = list(bytes(b'Im_The_CERT!'))
            gap_data = le_advertising_facade.GapDataMsg(
                data=bytes(gap_name.Serialize()))
            config = le_advertising_facade.AdvertisingConfig(
                advertisement=[gap_data],
                interval_min=512,
                interval_max=768,
                advertising_type=le_advertising_facade.AdvertisingEventType.
                ADV_IND,
                own_address_type=common.USE_RANDOM_DEVICE_ADDRESS,
                channel_map=7,
                filter_policy=le_advertising_facade.AdvertisingFilterPolicy.
                ALL_DEVICES)
            request = le_advertising_facade.CreateAdvertiserRequest(
                config=config)

            create_response = self.cert.hci_le_advertising_manager.CreateAdvertiser(
                request)

            advertising_event_stream.assert_event_occurs(
                lambda packet: b'Im_The_CERT' in packet.event)

            remove_request = le_advertising_facade.RemoveAdvertiserRequest(
                advertiser_id=create_response.advertiser_id)
            self.cert.hci_le_advertising_manager.RemoveAdvertiser(
                remove_request)
예제 #4
0
    def dut_connects(self, check_address):
        self.register_for_le_event(
            hci_packets.SubeventCode.CONNECTION_COMPLETE)
        self.register_for_le_event(
            hci_packets.SubeventCode.ENHANCED_CONNECTION_COMPLETE)

        # Cert Advertises
        advertising_handle = 0
        self.enqueue_hci_command(
            hci_packets.LeSetExtendedAdvertisingLegacyParametersBuilder(
                advertising_handle,
                hci_packets.LegacyAdvertisingProperties.ADV_IND,
                400,
                450,
                7,
                hci_packets.OwnAddressType.RANDOM_DEVICE_ADDRESS,
                hci_packets.PeerAddressType.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
                '00:00:00:00:00:00',
                hci_packets.AdvertisingFilterPolicy.ALL_DEVICES,
                0xF8,
                1,  #SID
                hci_packets.Enable.DISABLED  # Scan request notification
            ))

        self.enqueue_hci_command(
            hci_packets.LeSetExtendedAdvertisingRandomAddressBuilder(
                advertising_handle, '0C:05:04:03:02:01'))

        gap_name = hci_packets.GapData()
        gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
        gap_name.data = list(bytes(b'Im_A_Cert'))

        self.enqueue_hci_command(
            hci_packets.LeSetExtendedAdvertisingDataBuilder(
                advertising_handle,
                hci_packets.Operation.COMPLETE_ADVERTISEMENT,
                hci_packets.FragmentPreference.CONTROLLER_SHOULD_NOT,
                [gap_name]))

        gap_short_name = hci_packets.GapData()
        gap_short_name.data_type = hci_packets.GapDataType.SHORTENED_LOCAL_NAME
        gap_short_name.data = list(bytes(b'Im_A_C'))

        self.enqueue_hci_command(
            hci_packets.LeSetExtendedAdvertisingScanResponseBuilder(
                advertising_handle,
                hci_packets.Operation.COMPLETE_ADVERTISEMENT,
                hci_packets.FragmentPreference.CONTROLLER_SHOULD_NOT,
                [gap_short_name]))

        enabled_set = hci_packets.EnabledSet()
        enabled_set.advertising_handle = advertising_handle
        enabled_set.duration = 0
        enabled_set.max_extended_advertising_events = 0
        self.enqueue_hci_command(
            hci_packets.LeSetExtendedAdvertisingEnableBuilder(
                hci_packets.Enable.ENABLED, [enabled_set]))

        self.dut_le_acl = self.dut_le_acl_manager.connect_to_remote(
            remote_addr=common.BluetoothAddressWithType(
                address=common.BluetoothAddress(
                    address=bytes('0C:05:04:03:02:01', 'utf8')),
                type=int(hci_packets.AddressType.RANDOM_DEVICE_ADDRESS)))

        # Cert gets ConnectionComplete with a handle and sends ACL data
        handle = 0xfff
        address = hci_packets.Address()

        def get_handle(packet):
            packet_bytes = packet.payload
            nonlocal handle
            nonlocal address
            if b'\x3e\x13\x01\x00' in packet_bytes:
                cc_view = hci_packets.LeConnectionCompleteView(
                    hci_packets.LeMetaEventView(
                        hci_packets.EventView(
                            bt_packets.PacketViewLittleEndian(
                                list(packet_bytes)))))
                handle = cc_view.GetConnectionHandle()
                address = cc_view.GetPeerAddress()
                return True
            if b'\x3e\x13\x0A\x00' in packet_bytes:
                cc_view = hci_packets.LeEnhancedConnectionCompleteView(
                    hci_packets.LeMetaEventView(
                        hci_packets.EventView(
                            bt_packets.PacketViewLittleEndian(
                                list(packet_bytes)))))
                handle = cc_view.GetConnectionHandle()
                address = cc_view.GetPeerResolvablePrivateAddress()
                return True
            return False

        self.cert_hci_le_event_stream.assert_event_occurs(get_handle)
        self.cert_handle = handle
        dut_address_from_complete = address
        if check_address:
            assertThat(dut_address_from_complete).isEqualTo(
                self.dut_address.decode())
예제 #5
0
    def test_cert_connects(self):
        self.set_privacy_policy_static()
        self.register_for_le_event(
            hci_packets.SubeventCode.CONNECTION_COMPLETE)

        self.dut_le_acl_manager.listen_for_incoming_connections()

        # DUT Advertises
        gap_name = hci_packets.GapData()
        gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
        gap_name.data = list(bytes(b'Im_The_DUT'))
        gap_data = le_advertising_facade.GapDataMsg(
            data=bytes(gap_name.Serialize()))
        config = le_advertising_facade.AdvertisingConfig(
            advertisement=[gap_data],
            interval_min=512,
            interval_max=768,
            advertising_type=le_advertising_facade.AdvertisingEventType.
            ADV_IND,
            own_address_type=common.USE_RANDOM_DEVICE_ADDRESS,
            peer_address_type=common.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
            peer_address=common.BluetoothAddress(
                address=bytes(b'A6:A5:A4:A3:A2:A1')),
            channel_map=7,
            filter_policy=le_advertising_facade.AdvertisingFilterPolicy.
            ALL_DEVICES)
        request = le_advertising_facade.CreateAdvertiserRequest(config=config)

        self.dut.hci_le_advertising_manager.CreateAdvertiser(request)

        # Cert Connects
        self.enqueue_hci_command(
            hci_packets.LeSetRandomAddressBuilder('0C:05:04:03:02:01'))
        phy_scan_params = hci_packets.LeCreateConnPhyScanParameters()
        phy_scan_params.scan_interval = 0x60
        phy_scan_params.scan_window = 0x30
        phy_scan_params.conn_interval_min = 0x18
        phy_scan_params.conn_interval_max = 0x28
        phy_scan_params.conn_latency = 0
        phy_scan_params.supervision_timeout = 0x1f4
        phy_scan_params.min_ce_length = 0
        phy_scan_params.max_ce_length = 0
        self.enqueue_hci_command(
            hci_packets.LeExtendedCreateConnectionBuilder(
                hci_packets.InitiatorFilterPolicy.USE_PEER_ADDRESS,
                hci_packets.OwnAddressType.RANDOM_DEVICE_ADDRESS,
                hci_packets.AddressType.RANDOM_DEVICE_ADDRESS,
                self.dut_address.decode(), 1, [phy_scan_params]))

        # Cert gets ConnectionComplete with a handle and sends ACL data
        handle = 0xfff

        def get_handle(packet):
            packet_bytes = packet.payload
            nonlocal handle
            if b'\x3e\x13\x01\x00' in packet_bytes:
                cc_view = hci_packets.LeConnectionCompleteView(
                    hci_packets.LeMetaEventView(
                        hci_packets.EventView(
                            bt_packets.PacketViewLittleEndian(
                                list(packet_bytes)))))
                handle = cc_view.GetConnectionHandle()
                return True
            if b'\x3e\x13\x0A\x00' in packet_bytes:
                cc_view = hci_packets.LeEnhancedConnectionCompleteView(
                    hci_packets.LeMetaEventView(
                        hci_packets.EventView(
                            bt_packets.PacketViewLittleEndian(
                                list(packet_bytes)))))
                handle = cc_view.GetConnectionHandle()
                return True
            return False

        self.cert_hci_le_event_stream.assert_event_occurs(get_handle)
        self.cert_handle = handle

        self.enqueue_acl_data(
            self.cert_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'\x19\x00\x07\x00SomeAclData from the Cert'))

        # DUT gets a connection complete event and sends and receives
        handle = 0xfff
        self.dut_le_acl = self.dut_le_acl_manager.complete_incoming_connection(
        )

        self.send_receive_and_check()
예제 #6
0
    def test_le_ad_scan_dut_advertises(self):
        self.register_for_le_event(hci_packets.SubeventCode.ADVERTISING_REPORT)
        self.register_for_le_event(
            hci_packets.SubeventCode.EXTENDED_ADVERTISING_REPORT)
        with EventCallbackStream(
                self.cert_device.hci.FetchLeSubevents(
                    empty_proto.Empty())) as hci_le_event_stream:

            hci_event_asserts = EventAsserts(hci_le_event_stream)

            # CERT Scans
            self.enqueue_hci_command(
                hci_packets.LeSetRandomAddressBuilder('0C:05:04:03:02:01'),
                True)
            scan_parameters = hci_packets.PhyScanParameters()
            scan_parameters.le_scan_type = hci_packets.LeScanType.ACTIVE
            scan_parameters.le_scan_interval = 40
            scan_parameters.le_scan_window = 20
            self.enqueue_hci_command(
                hci_packets.LeSetExtendedScanParametersBuilder(
                    hci_packets.AddressType.RANDOM_DEVICE_ADDRESS,
                    hci_packets.LeSetScanningFilterPolicy.ACCEPT_ALL, 1,
                    [scan_parameters]), True)
            self.enqueue_hci_command(
                hci_packets.LeSetExtendedScanEnableBuilder(
                    hci_packets.Enable.ENABLED,
                    hci_packets.FilterDuplicates.DISABLED, 0, 0), True)

            # DUT Advertises
            gap_name = hci_packets.GapData()
            gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
            gap_name.data = list(bytes(b'Im_The_DUT!'))
            gap_data = le_advertising_facade.GapDataMsg(
                data=bytes(gap_name.Serialize()))
            config = le_advertising_facade.AdvertisingConfig(
                advertisement=[gap_data],
                random_address=common.BluetoothAddress(
                    address=bytes(b'0D:05:04:03:02:01')),
                interval_min=512,
                interval_max=768,
                event_type=le_advertising_facade.AdvertisingEventType.ADV_IND,
                address_type=common.RANDOM_DEVICE_ADDRESS,
                peer_address_type=common.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
                peer_address=common.BluetoothAddress(
                    address=bytes(b'A6:A5:A4:A3:A2:A1')),
                channel_map=7,
                filter_policy=le_advertising_facade.AdvertisingFilterPolicy.
                ALL_DEVICES)
            request = le_advertising_facade.CreateAdvertiserRequest(
                config=config)

            create_response = self.device_under_test.hci_le_advertising_manager.CreateAdvertiser(
                request)

            hci_event_asserts.assert_event_occurs(
                lambda packet: b'Im_The_DUT' in packet.event)

            remove_request = le_advertising_facade.RemoveAdvertiserRequest(
                advertiser_id=create_response.advertiser_id)
            self.device_under_test.hci_le_advertising_manager.RemoveAdvertiser(
                remove_request)
            self.enqueue_hci_command(
                hci_packets.LeSetScanEnableBuilder(
                    hci_packets.Enable.DISABLED, hci_packets.Enable.DISABLED),
                True)
예제 #7
0
    def test_cert_connects(self):
        self.register_for_le_event(
            hci_packets.SubeventCode.CONNECTION_COMPLETE)
        with EventCallbackStream(self.cert_device.hci.FetchLeSubevents(empty_proto.Empty())) as cert_hci_le_event_stream, \
                EventCallbackStream(self.cert_device.hci.FetchAclPackets(empty_proto.Empty())) as cert_acl_data_stream, \
                EventCallbackStream(self.device_under_test.hci_le_acl_manager.FetchIncomingConnection(empty_proto.Empty())) as incoming_connection_stream, \
                EventCallbackStream(self.device_under_test.hci_le_acl_manager.FetchAclData(empty_proto.Empty())) as acl_data_stream:

            cert_hci_le_event_asserts = EventAsserts(cert_hci_le_event_stream)
            incoming_connection_asserts = EventAsserts(
                incoming_connection_stream)
            acl_data_asserts = EventAsserts(acl_data_stream)
            cert_acl_data_asserts = EventAsserts(cert_acl_data_stream)

            # DUT Advertises
            gap_name = hci_packets.GapData()
            gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
            gap_name.data = list(bytes(b'Im_The_DUT'))
            gap_data = le_advertising_facade.GapDataMsg(
                data=bytes(gap_name.Serialize()))
            config = le_advertising_facade.AdvertisingConfig(
                advertisement=[gap_data],
                random_address=common.BluetoothAddress(
                    address=bytes(b'0D:05:04:03:02:01')),
                interval_min=512,
                interval_max=768,
                event_type=le_advertising_facade.AdvertisingEventType.ADV_IND,
                address_type=common.RANDOM_DEVICE_ADDRESS,
                peer_address_type=common.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
                peer_address=common.BluetoothAddress(
                    address=bytes(b'A6:A5:A4:A3:A2:A1')),
                channel_map=7,
                filter_policy=le_advertising_facade.AdvertisingFilterPolicy.
                ALL_DEVICES)
            request = le_advertising_facade.CreateAdvertiserRequest(
                config=config)

            create_response = self.device_under_test.hci_le_advertising_manager.CreateAdvertiser(
                request)

            # Cert Connects
            self.enqueue_hci_command(
                hci_packets.LeSetRandomAddressBuilder('0C:05:04:03:02:01'),
                True)
            phy_scan_params = hci_packets.LeCreateConnPhyScanParameters()
            phy_scan_params.scan_interval = 0x60
            phy_scan_params.scan_window = 0x30
            phy_scan_params.conn_interval_min = 0x18
            phy_scan_params.conn_interval_max = 0x28
            phy_scan_params.conn_latency = 0
            phy_scan_params.supervision_timeout = 0x1f4
            phy_scan_params.min_ce_length = 0
            phy_scan_params.max_ce_length = 0
            self.enqueue_hci_command(
                hci_packets.LeExtendedCreateConnectionBuilder(
                    hci_packets.InitiatorFilterPolicy.USE_PEER_ADDRESS,
                    hci_packets.OwnAddressType.RANDOM_DEVICE_ADDRESS,
                    hci_packets.AddressType.RANDOM_DEVICE_ADDRESS,
                    '0D:05:04:03:02:01', 1, [phy_scan_params]), False)

            # Cert gets ConnectionComplete with a handle and sends ACL data
            handle = 0xfff

            def get_handle(packet):
                packet_bytes = packet.event
                nonlocal handle
                if b'\x3e\x13\x01\x00' in packet_bytes:
                    cc_view = hci_packets.LeConnectionCompleteView(
                        hci_packets.LeMetaEventView(
                            hci_packets.EventPacketView(
                                bt_packets.PacketViewLittleEndian(
                                    list(packet_bytes)))))
                    handle = cc_view.GetConnectionHandle()
                    return True
                if b'\x3e\x13\x0A\x00' in packet_bytes:
                    cc_view = hci_packets.LeEnhancedConnectionCompleteView(
                        hci_packets.LeMetaEventView(
                            hci_packets.EventPacketView(
                                bt_packets.PacketViewLittleEndian(
                                    list(packet_bytes)))))
                    handle = cc_view.GetConnectionHandle()
                    return True
                return False

            cert_hci_le_event_asserts.assert_event_occurs(get_handle)
            cert_handle = handle

            self.enqueue_acl_data(
                cert_handle,
                hci_packets.PacketBoundaryFlag.FIRST_AUTOMATICALLY_FLUSHABLE,
                hci_packets.BroadcastFlag.POINT_TO_POINT,
                bytes(b'\x19\x00\x07\x00SomeAclData from the Cert'))

            # DUT gets a connection complete event and sends and receives
            handle = 0xfff
            incoming_connection_asserts.assert_event_occurs(get_handle)

            self.device_under_test.hci_le_acl_manager.SendAclData(
                le_acl_manager_facade.LeAclData(
                    handle=handle,
                    payload=bytes(
                        b'\x1C\x00\x07\x00SomeMoreAclData from the DUT')))

            cert_acl_data_asserts.assert_event_occurs(
                lambda packet: b'SomeMoreAclData' in packet.data)
            acl_data_asserts.assert_event_occurs(
                lambda packet: b'SomeAclData' in packet.payload)
    def pair_justworks(self, cert_iocap_reply, expected_ui_event):
        # Cert event registration
        self.register_for_event(hci_packets.EventCode.LINK_KEY_REQUEST)
        self.register_for_event(hci_packets.EventCode.IO_CAPABILITY_REQUEST)
        self.register_for_event(hci_packets.EventCode.IO_CAPABILITY_RESPONSE)
        self.register_for_event(
            hci_packets.EventCode.USER_PASSKEY_NOTIFICATION)
        self.register_for_event(
            hci_packets.EventCode.USER_CONFIRMATION_REQUEST)
        self.register_for_event(
            hci_packets.EventCode.REMOTE_HOST_SUPPORTED_FEATURES_NOTIFICATION)
        self.register_for_event(hci_packets.EventCode.LINK_KEY_NOTIFICATION)
        self.register_for_event(hci_packets.EventCode.SIMPLE_PAIRING_COMPLETE)
        with EventStream(self.dut.security.FetchUiEvents(empty_proto.Empty())) as dut_ui_stream, \
            EventStream(self.dut.security.FetchBondEvents(empty_proto.Empty())) as dut_bond_stream, \
            EventStream(self.dut.neighbor.GetRemoteNameEvents(empty_proto.Empty())) as dut_name_stream, \
            EventStream(self.cert.hci.FetchEvents(empty_proto.Empty())) as cert_hci_event_stream:

            dut_address = self.dut.hci_controller.GetMacAddress(
                empty_proto.Empty()).address
            cert_address = self.cert.hci_controller.GetMacAddress(
                empty_proto.Empty()).address

            # Enable Simple Secure Pairing
            self.enqueue_hci_command(
                hci_packets.WriteSimplePairingModeBuilder(
                    hci_packets.Enable.ENABLED), True)

            cert_hci_event_stream.assert_event_occurs(
                lambda msg: b'\x0e\x04\x01\x56\x0c' in msg.event)

            # Get the name
            self.dut.neighbor.ReadRemoteName(
                neighbor_facade.RemoteNameRequestMsg(
                    address=cert_address,
                    page_scan_repetition_mode=1,
                    clock_offset=0x6855))

            dut_name_stream.assert_event_occurs(
                lambda msg: self.cert_name in msg.name)

            self.dut.security.CreateBond(
                common.BluetoothAddressWithType(
                    address=common.BluetoothAddress(address=cert_address),
                    type=common.BluetoothAddressTypeEnum.PUBLIC_DEVICE_ADDRESS)
            )

            cert_hci_event_stream.assert_event_occurs(
                lambda event: logging.debug(event.event) or hci_packets.
                EventCode.IO_CAPABILITY_REQUEST in event.event)

            self.enqueue_hci_command(cert_iocap_reply, True)

            cert_hci_event_stream.assert_event_occurs(
                lambda event: logging.debug(event.event) or hci_packets.
                EventCode.USER_CONFIRMATION_REQUEST in event.event)
            self.enqueue_hci_command(
                hci_packets.UserConfirmationRequestReplyBuilder(
                    dut_address.decode('utf8')), True)

            logging.info("Waiting for UI event")
            ui_id = -1

            def get_unique_id(event):
                if (event.message_type == expected_ui_event):
                    nonlocal ui_id
                    ui_id = event.unique_id
                    return True
                return False

            dut_ui_stream.assert_event_occurs(get_unique_id)

            logging.info("Sending UI response")
            self.dut.security.SendUiCallback(
                security_facade.UiCallbackMsg(
                    message_type=security_facade.UiCallbackType.YES_NO,
                    boolean=True,
                    unique_id=ui_id,
                    address=common.BluetoothAddressWithType(
                        address=common.BluetoothAddress(address=cert_address),
                        type=common.BluetoothAddressTypeEnum.
                        PUBLIC_DEVICE_ADDRESS)))