Beispiel #1
0
class CertSecurity(PySecurity):
    """
        Contain all of the certification stack logic for sending and receiving
        HCI commands following the Classic Pairing flows.
    """
    _io_cap_lookup = {
        IoCapabilities.DISPLAY_ONLY:
        hci_packets.IoCapability.DISPLAY_ONLY,
        IoCapabilities.DISPLAY_YES_NO_IO_CAP:
        hci_packets.IoCapability.DISPLAY_YES_NO,
        IoCapabilities.KEYBOARD_ONLY:
        hci_packets.IoCapability.KEYBOARD_ONLY,
        IoCapabilities.NO_INPUT_NO_OUTPUT:
        hci_packets.IoCapability.NO_INPUT_NO_OUTPUT,
    }

    _auth_req_lookup = {
        AuthenticationRequirements.NO_BONDING:
        hci_packets.AuthenticationRequirements.NO_BONDING,
        AuthenticationRequirements.NO_BONDING_MITM_PROTECTION:
        hci_packets.AuthenticationRequirements.NO_BONDING_MITM_PROTECTION,
        AuthenticationRequirements.DEDICATED_BONDING:
        hci_packets.AuthenticationRequirements.DEDICATED_BONDING,
        AuthenticationRequirements.DEDICATED_BONDING_MITM_PROTECTION:
        hci_packets.AuthenticationRequirements.
        DEDICATED_BONDING_MITM_PROTECTION,
        AuthenticationRequirements.GENERAL_BONDING:
        hci_packets.AuthenticationRequirements.GENERAL_BONDING,
        AuthenticationRequirements.GENERAL_BONDING_MITM_PROTECTION:
        hci_packets.AuthenticationRequirements.GENERAL_BONDING_MITM_PROTECTION,
    }

    _oob_present_lookup = {
        OobDataPresent.NOT_PRESENT:
        hci_packets.OobDataPresent.NOT_PRESENT,
        OobDataPresent.P192_PRESENT:
        hci_packets.OobDataPresent.P_192_PRESENT,
        OobDataPresent.P256_PRESENT:
        hci_packets.OobDataPresent.P_256_PRESENT,
        OobDataPresent.P192_AND_256_PRESENT:
        hci_packets.OobDataPresent.P_192_AND_256_PRESENT,
    }

    _hci_event_stream = None
    _io_caps = hci_packets.IoCapability.DISPLAY_ONLY
    _oob_data = hci_packets.OobDataPresent.NOT_PRESENT
    _auth_reqs = hci_packets.AuthenticationRequirements.DEDICATED_BONDING_MITM_PROTECTION

    _hci = None

    def _enqueue_hci_command(self, command, expect_complete):
        if (expect_complete):
            self._hci.send_command_with_complete(command)
        else:
            self._hci.send_command_with_status(command)

    def __init__(self, device):
        """
            Don't call super b/c the gRPC stream setup will crash test
        """
        logging.info("Cert: Init")
        self._device = device
        self._device.wait_channel_ready()
        self._hci = PyHci(device)
        self._hci.register_for_events(
            hci_packets.EventCode.LINK_KEY_REQUEST,
            hci_packets.EventCode.IO_CAPABILITY_REQUEST,
            hci_packets.EventCode.IO_CAPABILITY_RESPONSE,
            hci_packets.EventCode.USER_PASSKEY_NOTIFICATION,
            hci_packets.EventCode.USER_PASSKEY_REQUEST,
            hci_packets.EventCode.USER_CONFIRMATION_REQUEST,
            hci_packets.EventCode.REMOTE_HOST_SUPPORTED_FEATURES_NOTIFICATION,
            hci_packets.EventCode.LINK_KEY_NOTIFICATION,
            hci_packets.EventCode.SIMPLE_PAIRING_COMPLETE)
        self._hci_event_stream = self._hci.get_event_stream()

    def create_bond(self, address, type):
        """
            Creates a bond from the cert perspective
        """
        logging.info("Cert: Creating bond to '%s' from '%s'" %
                     (str(address), str(self._device.address)))
        # TODO(optedoblivion): Trigger connection to Send AuthenticationRequested

    def remove_bond(self, address, type):
        """
            We store the link key locally in the test and pretend
            So to remove_bond we need to Remove the "stored" data
        """
        pass

    def set_io_capabilities(self, io_capabilities):
        """
            Set the IO Capabilities used for the cert
        """
        logging.info(
            "Cert: setting IO Capabilities data to '%s'" %
            self._io_capabilities_name_lookup.get(io_capabilities, "ERROR"))
        self._io_caps = self._io_cap_lookup.get(
            io_capabilities, hci_packets.IoCapability.DISPLAY_YES_NO)

    def set_authentication_requirements(self, auth_reqs):
        """
            Establish authentication requirements for the stack
        """
        logging.info("Cert: setting Authentication Requirements data to '%s'" %
                     self._auth_reqs_name_lookup.get(auth_reqs, "ERROR"))
        self._auth_reqs = self._auth_req_lookup.get(
            auth_reqs, hci_packets.AuthenticationRequirements.GENERAL_BONDING)

    def set_oob_data(self, data):
        """
            Set the Out-of-band data for SSP pairing
        """
        logging.info("Cert: setting OOB data present to '%s'" % data)
        self._oob_data = self._oob_present_lookup.get(
            data, hci_packets.OobDataPresent.NOT_PRESENT)

    def send_ui_callback(self, address, callback_type, b, uid):
        """
            Pretend to answer the pairing dailog as a user
        """
        logging.info("Cert: Send user input callback uid:%d; response: %s" %
                     (uid, b))
        # TODO(optedoblivion): Make callback and set it to the module

    def enable_secure_simple_pairing(self):
        """
            This is called when you want to enable SSP for testing
        """
        logging.info("Cert: Sending WRITE_SIMPLE_PAIRING_MODE [True]")
        self._enqueue_hci_command(
            hci_packets.WriteSimplePairingModeBuilder(
                hci_packets.Enable.ENABLED), True)
        logging.info("Cert: Waiting for controller response")
        assertThat(self._hci_event_stream).emits(
            lambda msg: b'\x0e\x04\x01\x56\x0c' in msg.event)

    def accept_pairing(self, dut_address, reply_boolean):
        """
            Here we handle the pairing events at the HCI level
        """
        logging.info("Cert: Waiting for LINK_KEY_REQUEST")
        assertThat(self._hci_event_stream).emits(HciMatchers.LinkKeyRequest())
        logging.info("Cert: Sending LINK_KEY_REQUEST_NEGATIVE_REPLY")
        self._enqueue_hci_command(
            hci_packets.LinkKeyRequestNegativeReplyBuilder(
                dut_address.decode('utf8')), True)
        logging.info("Cert: Waiting for IO_CAPABILITY_REQUEST")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.IoCapabilityRequest())
        logging.info("Cert: Sending IO_CAPABILITY_REQUEST_REPLY")
        self._enqueue_hci_command(
            hci_packets.IoCapabilityRequestReplyBuilder(
                dut_address.decode('utf8'), self._io_caps, self._oob_data,
                self._auth_reqs), True)
        logging.info("Cert: Waiting for USER_CONFIRMATION_REQUEST")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.UserConfirmationRequest())
        logging.info("Cert: Sending Simulated User Response '%s'" %
                     reply_boolean)
        if reply_boolean:
            logging.info("Cert: Sending USER_CONFIRMATION_REQUEST_REPLY")
            self._enqueue_hci_command(
                hci_packets.UserConfirmationRequestReplyBuilder(
                    dut_address.decode('utf8')), True)
            logging.info("Cert: Waiting for SIMPLE_PAIRING_COMPLETE")
            assertThat(self._hci_event_stream).emits(
                HciMatchers.SimplePairingComplete())
            logging.info("Cert: Waiting for LINK_KEY_NOTIFICATION")
            assertThat(self._hci_event_stream).emits(
                HciMatchers.LinkKeyNotification())
        else:
            logging.info(
                "Cert: Sending USER_CONFIRMATION_REQUEST_NEGATIVE_REPLY")
            self._enqueue_hci_command(
                hci_packets.UserConfirmationRequestNegativeReplyBuilder(
                    dut_address.decode('utf8')), True)
            logging.info("Cert: Waiting for SIMPLE_PAIRING_COMPLETE")
            assertThat(self._hci_event_stream).emits(
                HciMatchers.SimplePairingComplete())

    def on_user_input(self, dut_address, reply_boolean, expected_ui_event):
        """
            Cert doesn't need the test to respond to the ui event
            Cert responds in accept pairing
        """
        pass

    def wait_for_bond_event(self, expected_bond_event):
        """
            A bond event will be triggered once the bond process
            is complete.  For the DUT we need to wait for it,
            for Cert it isn't needed.
        """
        pass

    def enforce_security_policy(self, address, type, policy):
        """
            Pass for now
        """
        pass

    def wait_for_enforce_security_event(self, expected_enforce_security_event):
        """
            Cert side needs to pass
        """
        pass

    def close(self):
        safeClose(self._hci)
Beispiel #2
0
class PyL2cap(Closable):
    def __init__(self, device, cert_address, has_security=False):
        self._device = device
        self._cert_address = cert_address
        self._hci = PyHci(device)
        self._l2cap_stream = EventStream(
            self._device.l2cap.FetchL2capData(empty_proto.Empty()))
        self._security_connection_event_stream = EventStream(
            self._device.l2cap.FetchSecurityConnectionEvents(
                empty_proto.Empty()))
        if has_security == False:
            self._hci.register_for_events(
                hci_packets.EventCode.LINK_KEY_REQUEST)

    def close(self):
        safeClose(self._l2cap_stream)
        safeClose(self._security_connection_event_stream)
        safeClose(self._hci)

    def register_dynamic_channel(
            self,
            psm=0x33,
            mode=l2cap_facade_pb2.RetransmissionFlowControlMode.BASIC):
        self._device.l2cap.SetDynamicChannel(
            l2cap_facade_pb2.SetEnableDynamicChannelRequest(
                psm=psm, retransmission_mode=mode))
        return PyL2capChannel(self._device, psm, self._l2cap_stream)

    def connect_dynamic_channel_to_cert(
            self,
            psm=0x33,
            mode=l2cap_facade_pb2.RetransmissionFlowControlMode.BASIC):
        """
        Send open Dynamic channel request to CERT.
        Get a future for connection result, to be used after CERT accepts request
        """
        self.register_dynamic_channel(psm, mode)
        response_future = self._device.l2cap.OpenChannel.future(
            l2cap_facade_pb2.OpenChannelRequest(psm=psm,
                                                remote=self._cert_address,
                                                mode=mode))

        return _ClassicConnectionResponseFutureWrapper(response_future,
                                                       self._device, psm,
                                                       self._l2cap_stream)

    def get_channel_queue_buffer_size(self):
        return self._device.l2cap.GetChannelQueueDepth(
            empty_proto.Empty()).size

    def initiate_connection_for_security(self):
        """
        Establish an ACL for the specific purpose of pairing devices
        """
        self._device.l2cap.InitiateConnectionForSecurity(self._cert_address)

    def get_security_connection_event_stream(self):
        """
        Stream of Link related events.  Events are returned with an address.
        Events map to the LinkSecurityInterfaceListener callbacks
        """
        return self._security_connection_event_stream

    def security_link_hold(self):
        """
        Holds open the ACL indefinitely allowing for the security handshake
        to take place
        """
        self._device.l2cap.SecurityLinkHold(self._cert_address)

    def security_link_ensure_authenticated(self):
        """
        Triggers authentication process by sending HCI event AUTHENTICATION_REQUESTED
        """
        self._device.l2cap.SecurityLinkEnsureAuthenticated(self._cert_address)

    def security_link_release(self):
        """
        Releases a Held open ACL allowing for the ACL to time out after the default time
        """
        self._device.l2cap.SecurityLinkRelease(self._cert_address)

    def security_link_disconnect(self):
        """
        Immediately release and disconnect ACL
        """
        self._device.l2cap.SecurityLinkDisconnect(self._cert_address)

    def verify_security_connection(self):
        """
        Verify that we get a connection and a link key request
        """
        assertThat(self.get_security_connection_event_stream()).emits(
            lambda event: event.event_type ==
            LinkSecurityInterfaceCallbackEventType.ON_CONNECTED)
        assertThat(self._hci.get_event_stream()).emits(
            HciMatchers.LinkKeyRequest())
class NeighborTest(GdBaseTestClass):
    def setup_class(self):
        super().setup_class(dut_module='HCI_INTERFACES', cert_module='HCI')

    def setup_test(self):
        super().setup_test()
        self.cert_hci = PyHci(self.cert, acl_streaming=True)
        self.cert_hci.send_command_with_complete(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))
        self.cert_name = b'Im_A_Cert'
        self.cert_address = self.cert_hci.read_own_address()
        self.cert_name += b'@' + self.cert_address.encode('utf8')
        self.dut_neighbor = PyNeighbor(self.dut)

    def teardown_test(self):
        self.cert_hci.close()
        super().teardown_test()

    def _set_name(self):
        padded_name = self.cert_name
        while len(padded_name) < 248:
            padded_name = padded_name + b'\0'
        self.cert_hci.send_command_with_complete(
            hci_packets.WriteLocalNameBuilder(padded_name))

        assertThat(self.cert_hci.get_event_stream()).emits(
            HciMatchers.CommandComplete(OpCode.WRITE_LOCAL_NAME))

    def test_inquiry_from_dut(self):
        inquiry_msg = neighbor_facade.InquiryMsg(
            inquiry_mode=neighbor_facade.DiscoverabilityMode.GENERAL,
            result_mode=neighbor_facade.ResultMode.STANDARD,
            length_1_28s=3,
            max_results=0)
        session = self.dut_neighbor.set_inquiry_mode(inquiry_msg)
        self.cert_hci.send_command_with_complete(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))
        assertThat(session).emits(NeighborMatchers.InquiryResult(
            self.cert_address),
                                  timeout=timedelta(seconds=10))

    def test_inquiry_rssi_from_dut(self):
        inquiry_msg = neighbor_facade.InquiryMsg(
            inquiry_mode=neighbor_facade.DiscoverabilityMode.GENERAL,
            result_mode=neighbor_facade.ResultMode.RSSI,
            length_1_28s=6,
            max_results=0)
        session = self.dut_neighbor.set_inquiry_mode(inquiry_msg)
        self.cert_hci.send_command_with_complete(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))
        assertThat(session).emits(NeighborMatchers.InquiryResultwithRssi(
            self.cert_address),
                                  timeout=timedelta(seconds=10))

    def test_inquiry_extended_from_dut(self):
        self._set_name()
        gap_name = hci_packets.GapData()
        gap_name.data_type = hci_packets.GapDataType.COMPLETE_LOCAL_NAME
        gap_name.data = list(bytes(self.cert_name))
        gap_data = list([gap_name])

        self.cert_hci.send_command_with_complete(
            hci_packets.WriteExtendedInquiryResponseBuilder(
                hci_packets.FecRequired.NOT_REQUIRED, gap_data))
        inquiry_msg = neighbor_facade.InquiryMsg(
            inquiry_mode=neighbor_facade.DiscoverabilityMode.GENERAL,
            result_mode=neighbor_facade.ResultMode.EXTENDED,
            length_1_28s=8,
            max_results=0)
        session = self.dut_neighbor.set_inquiry_mode(inquiry_msg)
        self.cert_hci.send_command_with_complete(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))
        assertThat(session).emits(NeighborMatchers.ExtendedInquiryResult(
            self.cert_address),
                                  timeout=timedelta(seconds=10))

    def test_remote_name(self):
        self._set_name()
        session = self.dut_neighbor.get_remote_name(self.cert_address)
        session.verify_name(self.cert_name)
class DirectHciTest(GdBaseTestClass):
    def setup_class(self):
        super().setup_class(dut_module='HCI', cert_module='HAL')

    def setup_test(self):
        super().setup_test()
        self.dut_hci = PyHci(self.dut, acl_streaming=True)
        self.cert_hal = PyHal(self.cert)
        self.cert_hal.send_hci_command(ResetBuilder())

    def teardown_test(self):
        self.dut_hci.close()
        self.cert_hal.close()
        super().teardown_test()

    def enqueue_acl_data(self, handle, pb_flag, b_flag, data):
        acl = AclBuilder(handle, pb_flag, b_flag, RawBuilder(data))
        self.dut.hci.SendAcl(common.Data(payload=bytes(acl.Serialize())))

    def test_local_hci_cmd_and_event(self):
        # Loopback mode responds with ACL and SCO connection complete
        self.dut_hci.register_for_events(EventCode.LOOPBACK_COMMAND)
        self.dut_hci.send_command(
            WriteLoopbackModeBuilder(LoopbackMode.ENABLE_LOCAL))

        self.dut_hci.send_command(ReadLocalNameBuilder())
        assertThat(self.dut_hci.get_event_stream()).emits(
            HciMatchers.LoopbackOf(ReadLocalNameBuilder()))

    def test_inquiry_from_dut(self):
        self.dut_hci.register_for_events(EventCode.INQUIRY_RESULT)

        self.cert_hal.enable_inquiry_and_page_scan()
        lap = Lap()
        lap.lap = 0x33
        self.dut_hci.send_command(InquiryBuilder(lap, 0x30, 0xff))
        assertThat(self.dut_hci.get_event_stream()).emits(
            HciMatchers.EventWithCode(EventCode.INQUIRY_RESULT))

    def test_le_ad_scan_cert_advertises(self):
        self.dut_hci.register_for_le_events(
            SubeventCode.EXTENDED_ADVERTISING_REPORT,
            SubeventCode.ADVERTISING_REPORT)

        # DUT Scans
        self.dut_hci.send_command(
            LeSetRandomAddressBuilder('0D:05:04:03:02:01'))
        phy_scan_params = PhyScanParameters()
        phy_scan_params.le_scan_interval = 6553
        phy_scan_params.le_scan_window = 6553
        phy_scan_params.le_scan_type = LeScanType.ACTIVE

        self.dut_hci.send_command(
            LeSetExtendedScanParametersBuilder(
                OwnAddressType.RANDOM_DEVICE_ADDRESS,
                LeScanningFilterPolicy.ACCEPT_ALL, 1, [phy_scan_params]))
        self.dut_hci.send_command(
            LeSetExtendedScanEnableBuilder(Enable.ENABLED,
                                           FilterDuplicates.DISABLED, 0, 0))

        # CERT Advertises
        advertising_handle = 0
        self.cert_hal.send_hci_command(
            LeSetExtendedAdvertisingLegacyParametersBuilder(
                advertising_handle,
                LegacyAdvertisingProperties.ADV_IND,
                512,
                768,
                7,
                OwnAddressType.RANDOM_DEVICE_ADDRESS,
                PeerAddressType.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
                'A6:A5:A4:A3:A2:A1',
                AdvertisingFilterPolicy.ALL_DEVICES,
                0xF7,
                1,  # SID
                Enable.DISABLED  # Scan request notification
            ))

        self.cert_hal.send_hci_command(
            LeSetExtendedAdvertisingRandomAddressBuilder(
                advertising_handle, '0C:05:04:03:02:01'))
        gap_name = GapData()
        gap_name.data_type = GapDataType.COMPLETE_LOCAL_NAME
        gap_name.data = list(bytes(b'Im_A_Cert'))

        self.cert_hal.send_hci_command(
            LeSetExtendedAdvertisingDataBuilder(
                advertising_handle, Operation.COMPLETE_ADVERTISEMENT,
                FragmentPreference.CONTROLLER_SHOULD_NOT, [gap_name]))

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

        self.cert_hal.send_hci_command(
            LeSetExtendedAdvertisingScanResponseBuilder(
                advertising_handle, Operation.COMPLETE_ADVERTISEMENT,
                FragmentPreference.CONTROLLER_SHOULD_NOT, [gap_short_name]))

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

        assertThat(self.dut_hci.get_le_event_stream()).emits(
            lambda packet: b'Im_A_Cert' in packet.payload)

        self.cert_hal.send_hci_command(
            LeSetExtendedAdvertisingEnableBuilder(Enable.DISABLED,
                                                  [enabled_set]))
        self.dut_hci.send_command(
            LeSetExtendedScanEnableBuilder(Enable.DISABLED,
                                           FilterDuplicates.DISABLED, 0, 0))

    def _verify_le_connection_complete(self):
        cert_conn_complete_capture = HalCaptures.LeConnectionCompleteCapture()
        assertThat(self.cert_hal.get_hci_event_stream()).emits(
            cert_conn_complete_capture)
        cert_handle = cert_conn_complete_capture.get().GetConnectionHandle()

        dut_conn_complete_capture = HciCaptures.LeConnectionCompleteCapture()
        assertThat(self.dut_hci.get_le_event_stream()).emits(
            dut_conn_complete_capture)
        dut_handle = dut_conn_complete_capture.get().GetConnectionHandle()

        return (dut_handle, cert_handle)

    @staticmethod
    def _create_phy_scan_params():
        phy_scan_params = 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
        return phy_scan_params

    def test_le_connection_dut_advertises(self):
        self.dut_hci.register_for_le_events(
            SubeventCode.CONNECTION_COMPLETE,
            SubeventCode.ADVERTISING_SET_TERMINATED,
            SubeventCode.ENHANCED_CONNECTION_COMPLETE,
            SubeventCode.READ_REMOTE_FEATURES_COMPLETE)
        # Cert Connects
        self.cert_hal.send_hci_command(
            LeSetRandomAddressBuilder('0C:05:04:03:02:01'))
        phy_scan_params = DirectHciTest._create_phy_scan_params()
        self.cert_hal.send_hci_command(
            LeExtendedCreateConnectionBuilder(
                InitiatorFilterPolicy.USE_PEER_ADDRESS,
                OwnAddressType.RANDOM_DEVICE_ADDRESS,
                AddressType.RANDOM_DEVICE_ADDRESS, '0D:05:04:03:02:01', 1,
                [phy_scan_params]))

        advertisement = self.dut_hci.create_advertisement(
            0, '0D:05:04:03:02:01')
        advertisement.set_data(b'Im_The_DUT')
        advertisement.set_scan_response(b'Im_The_D')
        advertisement.start()

        (dut_handle, cert_handle) = self._verify_le_connection_complete()

        self.dut_hci.send_command(LeReadRemoteFeaturesBuilder(dut_handle))
        assertThat(self.dut_hci.get_le_event_stream()).emits(
            lambda packet: packet.payload[0] == int(
                EventCode.LE_META_EVENT) and packet.payload[2] == int(
                    SubeventCode.READ_REMOTE_FEATURES_COMPLETE))

        # Send ACL Data
        self.enqueue_acl_data(
            dut_handle, PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            BroadcastFlag.POINT_TO_POINT, bytes(b'Just SomeAclData'))
        self.cert_hal.send_acl_first(cert_handle,
                                     bytes(b'Just SomeMoreAclData'))

        assertThat(
            self.cert_hal.get_acl_stream()).emits(lambda packet: logging.debug(
                packet.payload) or b'SomeAclData' in packet.payload)
        assertThat(self.dut_hci.get_raw_acl_stream()).emits(
            lambda packet: logging.debug(
                packet.payload) or b'SomeMoreAclData' in packet.payload)

    def test_le_connect_list_connection_cert_advertises(self):
        self.dut_hci.register_for_le_events(
            SubeventCode.CONNECTION_COMPLETE,
            SubeventCode.ENHANCED_CONNECTION_COMPLETE)
        # DUT Connects
        self.dut_hci.send_command(
            LeSetRandomAddressBuilder('0D:05:04:03:02:01'))
        self.dut_hci.send_command(
            LeAddDeviceToConnectListBuilder(ConnectListAddressType.RANDOM,
                                            '0C:05:04:03:02:01'))
        phy_scan_params = DirectHciTest._create_phy_scan_params()
        self.dut_hci.send_command(
            LeExtendedCreateConnectionBuilder(
                InitiatorFilterPolicy.USE_CONNECT_LIST,
                OwnAddressType.RANDOM_DEVICE_ADDRESS,
                AddressType.RANDOM_DEVICE_ADDRESS, 'BA:D5:A4:A3:A2:A1', 1,
                [phy_scan_params]))

        advertisement = self.cert_hal.create_advertisement(
            1,
            '0C:05:04:03:02:01',
            min_interval=512,
            max_interval=768,
            peer_address='A6:A5:A4:A3:A2:A1',
            tx_power=0x7f,
            sid=0)
        advertisement.set_data(b'Im_A_Cert')
        advertisement.start()

        # LeConnectionComplete
        self._verify_le_connection_complete()

    def test_connection_dut_connects(self):
        self.dut_hci.send_command(WritePageTimeoutBuilder(0x4000))

        self.cert_hal.enable_inquiry_and_page_scan()
        address = self.cert_hal.read_own_address()

        self.dut_hci.initiate_connection(address)
        cert_acl = self.cert_hal.accept_connection()
        dut_acl = self.dut_hci.complete_connection()

        # Send ACL Data
        dut_acl.send_first(b'Just SomeAclData')
        cert_acl.send_first(b'Just SomeMoreAclData')

        assertThat(self.cert_hal.get_acl_stream()).emits(
            lambda packet: b'SomeAclData' in packet.payload)
        assertThat(self.dut_hci.get_raw_acl_stream()).emits(
            lambda packet: b'SomeMoreAclData' in packet.payload)

    def test_connection_cert_connects(self):
        self.cert_hal.send_hci_command(WritePageTimeoutBuilder(0x4000))

        self.dut_hci.enable_inquiry_and_page_scan()
        address = self.dut_hci.read_own_address()

        self.cert_hal.initiate_connection(address)
        dut_acl = self.dut_hci.accept_connection()
        cert_acl = self.cert_hal.complete_connection()

        # Send ACL Data
        dut_acl.send_first(b'This is just SomeAclData')
        cert_acl.send_first(b'This is just SomeMoreAclData')

        assertThat(self.cert_hal.get_acl_stream()).emits(
            lambda packet: b'SomeAclData' in packet.payload)
        assertThat(self.dut_hci.get_raw_acl_stream()).emits(
            lambda packet: b'SomeMoreAclData' in packet.payload)
Beispiel #5
0
class DirectHciTest(GdBaseTestClass):
    def setup_class(self):
        super().setup_class(dut_module='HCI', cert_module='HAL')

    def setup_test(self):
        super().setup_test()
        self.dut_hci = PyHci(self.dut, acl_streaming=True)
        self.cert_hal = PyHal(self.cert)
        self.cert_hal.send_hci_command(hci_packets.ResetBuilder().Serialize())

    def teardown_test(self):
        self.dut_hci.close()
        self.cert_hal.close()
        super().teardown_test()

    def send_hal_hci_command(self, command):
        self.cert_hal.send_hci_command(bytes(command.Serialize()))

    def enqueue_acl_data(self, handle, pb_flag, b_flag, acl):
        acl_msg = hci_facade.AclMsg(handle=int(handle),
                                    packet_boundary_flag=int(pb_flag),
                                    broadcast_flag=int(b_flag),
                                    data=acl)
        self.dut.hci.SendAclData(acl_msg)

    def send_hal_acl_data(self, handle, pb_flag, b_flag, acl):
        lower = handle & 0xff
        upper = (handle >> 8) & 0xf
        upper = upper | int(pb_flag) & 0x3
        upper = upper | ((int(b_flag) & 0x3) << 2)
        lower_length = len(acl) & 0xff
        upper_length = (len(acl) & 0xff00) >> 8
        concatenated = bytes([lower, upper, lower_length, upper_length] +
                             list(acl))
        self.cert_hal.send_acl(concatenated)

    def test_local_hci_cmd_and_event(self):
        # Loopback mode responds with ACL and SCO connection complete
        self.dut_hci.register_for_events(
            hci_packets.EventCode.LOOPBACK_COMMAND)

        self.dut_hci.send_command_with_complete(
            hci_packets.WriteLoopbackModeBuilder(
                hci_packets.LoopbackMode.ENABLE_LOCAL))

        cmd2loop = hci_packets.ReadLocalNameBuilder()
        self.dut_hci.send_command_with_complete(cmd2loop)

        looped_bytes = bytes(cmd2loop.Serialize())
        assertThat(self.dut_hci.get_event_stream()).emits(
            lambda packet: looped_bytes in packet.event)

    def test_inquiry_from_dut(self):
        self.dut_hci.register_for_events(hci_packets.EventCode.INQUIRY_RESULT)

        self.send_hal_hci_command(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))
        lap = hci_packets.Lap()
        lap.lap = 0x33
        self.dut_hci.send_command_with_status(
            hci_packets.InquiryBuilder(lap, 0x30, 0xff))
        assertThat(self.dut_hci.get_event_stream()).emits(
            HciMatchers.EventWithCode(hci_packets.EventCode.INQUIRY_RESULT))

    def test_le_ad_scan_cert_advertises(self):
        self.dut_hci.register_for_le_events(
            hci_packets.SubeventCode.EXTENDED_ADVERTISING_REPORT)
        self.dut_hci.register_for_le_events(
            hci_packets.SubeventCode.ADVERTISING_REPORT)

        # DUT Scans
        self.dut_hci.send_command_with_complete(
            hci_packets.LeSetRandomAddressBuilder('0D:05:04:03:02:01'))
        phy_scan_params = hci_packets.PhyScanParameters()
        phy_scan_params.le_scan_interval = 6553
        phy_scan_params.le_scan_window = 6553
        phy_scan_params.le_scan_type = hci_packets.LeScanType.ACTIVE

        self.dut_hci.send_command_with_complete(
            hci_packets.LeSetExtendedScanParametersBuilder(
                hci_packets.AddressType.RANDOM_DEVICE_ADDRESS,
                hci_packets.LeSetScanningFilterPolicy.ACCEPT_ALL, 1,
                [phy_scan_params]))
        self.dut_hci.send_command_with_complete(
            hci_packets.LeSetExtendedScanEnableBuilder(
                hci_packets.Enable.ENABLED,
                hci_packets.FilterDuplicates.DISABLED, 0, 0))

        # CERT Advertises
        advertising_handle = 0
        self.send_hal_hci_command(
            hci_packets.LeSetExtendedAdvertisingLegacyParametersBuilder(
                advertising_handle,
                hci_packets.LegacyAdvertisingProperties.ADV_IND,
                512,
                768,
                7,
                hci_packets.OwnAddressType.RANDOM_DEVICE_ADDRESS,
                hci_packets.PeerAddressType.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
                'A6:A5:A4:A3:A2:A1',
                hci_packets.AdvertisingFilterPolicy.ALL_DEVICES,
                0xF7,
                1,  # SID
                hci_packets.Enable.DISABLED  # Scan request notification
            ))

        self.send_hal_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!'))  # TODO: Fix and remove !

        self.send_hal_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.send_hal_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 = 0
        enabled_set.duration = 0
        enabled_set.max_extended_advertising_events = 0
        self.send_hal_hci_command(
            hci_packets.LeSetExtendedAdvertisingEnableBuilder(
                hci_packets.Enable.ENABLED, [enabled_set]))

        assertThat(self.dut_hci.get_le_event_stream()).emits(
            lambda packet: b'Im_A_Cert' in packet.event)

        self.send_hal_hci_command(
            hci_packets.LeSetExtendedAdvertisingEnableBuilder(
                hci_packets.Enable.DISABLED, [enabled_set]))
        self.dut_hci.send_command_with_complete(
            hci_packets.LeSetExtendedScanEnableBuilder(
                hci_packets.Enable.DISABLED,
                hci_packets.FilterDuplicates.DISABLED, 0, 0))

    def _verify_le_connection_complete(self):
        cert_conn_complete_capture = HalCaptures.LeConnectionCompleteCapture()
        assertThat(self.cert_hal.get_hci_event_stream()).emits(
            cert_conn_complete_capture)
        cert_handle = cert_conn_complete_capture.get().GetConnectionHandle()

        dut_conn_complete_capture = HciCaptures.LeConnectionCompleteCapture()
        assertThat(self.dut_hci.get_le_event_stream()).emits(
            dut_conn_complete_capture)
        dut_handle = dut_conn_complete_capture.get().GetConnectionHandle()

        return (dut_handle, cert_handle)

    @staticmethod
    def _create_phy_scan_params():
        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
        return phy_scan_params

    def test_le_connection_dut_advertises(self):
        self.dut_hci.register_for_le_events(
            hci_packets.SubeventCode.CONNECTION_COMPLETE)
        # Cert Connects
        self.send_hal_hci_command(
            hci_packets.LeSetRandomAddressBuilder('0C:05:04:03:02:01'))
        phy_scan_params = DirectHciTest._create_phy_scan_params()
        self.send_hal_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]))

        # DUT Advertises
        advertising_handle = 0
        self.dut_hci.send_command_with_complete(
            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.dut_hci.send_command_with_complete(
            hci_packets.LeSetExtendedAdvertisingRandomAddressBuilder(
                advertising_handle, '0D: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_The_DUT!'))  # TODO: Fix and remove !

        self.dut_hci.send_command_with_complete(
            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_The_D'))

        self.dut_hci.send_command_with_complete(
            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.dut_hci.send_command_with_complete(
            hci_packets.LeSetExtendedAdvertisingEnableBuilder(
                hci_packets.Enable.ENABLED, [enabled_set]))

        # Check for success of Enable
        assertThat(self.dut_hci.get_event_stream()).emits(
            HciMatchers.CommandComplete(
                hci_packets.OpCode.LE_SET_EXTENDED_ADVERTISING_ENABLE))

        (dut_handle, cert_handle) = self._verify_le_connection_complete()

        # Send ACL Data
        self.enqueue_acl_data(
            dut_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'Just SomeAclData'))
        self.send_hal_acl_data(
            cert_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'Just SomeMoreAclData'))

        assertThat(
            self.cert_hal.get_acl_stream()).emits(lambda packet: logging.debug(
                packet.payload) or b'SomeAclData' in packet.payload)
        assertThat(self.dut_hci.get_raw_acl_stream()).emits(
            lambda packet: logging.debug(
                packet.data) or b'SomeMoreAclData' in packet.data)

    def test_le_white_list_connection_cert_advertises(self):
        self.dut_hci.register_for_le_events(
            hci_packets.SubeventCode.CONNECTION_COMPLETE)
        # DUT Connects
        self.dut_hci.send_command_with_complete(
            hci_packets.LeSetRandomAddressBuilder('0D:05:04:03:02:01'))
        self.dut_hci.send_command_with_complete(
            hci_packets.LeAddDeviceToWhiteListBuilder(
                hci_packets.WhiteListAddressType.RANDOM, '0C:05:04:03:02:01'))
        phy_scan_params = DirectHciTest._create_phy_scan_params()
        self.dut_hci.send_command_with_status(
            hci_packets.LeExtendedCreateConnectionBuilder(
                hci_packets.InitiatorFilterPolicy.USE_WHITE_LIST,
                hci_packets.OwnAddressType.RANDOM_DEVICE_ADDRESS,
                hci_packets.AddressType.RANDOM_DEVICE_ADDRESS,
                'BA:D5:A4:A3:A2:A1', 1, [phy_scan_params]))

        # CERT Advertises
        advertising_handle = 1
        self.send_hal_hci_command(
            hci_packets.LeSetExtendedAdvertisingLegacyParametersBuilder(
                advertising_handle,
                hci_packets.LegacyAdvertisingProperties.ADV_IND,
                512,
                768,
                7,
                hci_packets.OwnAddressType.RANDOM_DEVICE_ADDRESS,
                hci_packets.PeerAddressType.PUBLIC_DEVICE_OR_IDENTITY_ADDRESS,
                'A6:A5:A4:A3:A2:A1',
                hci_packets.AdvertisingFilterPolicy.ALL_DEVICES,
                0x7F,
                0,  # SID
                hci_packets.Enable.DISABLED  # Scan request notification
            ))

        self.send_hal_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!'))  # TODO: Fix and remove !

        self.send_hal_hci_command(
            hci_packets.LeSetExtendedAdvertisingDataBuilder(
                advertising_handle,
                hci_packets.Operation.COMPLETE_ADVERTISEMENT,
                hci_packets.FragmentPreference.CONTROLLER_SHOULD_NOT,
                [gap_name]))
        enabled_set = hci_packets.EnabledSet()
        enabled_set.advertising_handle = 1
        enabled_set.duration = 0
        enabled_set.max_extended_advertising_events = 0
        self.send_hal_hci_command(
            hci_packets.LeSetExtendedAdvertisingEnableBuilder(
                hci_packets.Enable.ENABLED, [enabled_set]))

        # LeConnectionComplete
        self._verify_le_connection_complete()

    def _verify_connection_complete(self):
        cert_connection_complete_capture = HalCaptures.ConnectionCompleteCapture(
        )
        assertThat(self.cert_hal.get_hci_event_stream()).emits(
            cert_connection_complete_capture)
        cert_handle = cert_connection_complete_capture.get(
        ).GetConnectionHandle()

        dut_connection_complete_capture = HciCaptures.ConnectionCompleteCapture(
        )
        assertThat(self.dut_hci.get_event_stream()).emits(
            dut_connection_complete_capture)
        dut_handle = dut_connection_complete_capture.get().GetConnectionHandle(
        )

        return (dut_handle, cert_handle)

    def test_connection_dut_connects(self):
        self.dut_hci.send_command_with_complete(
            hci_packets.WritePageTimeoutBuilder(0x4000))

        # CERT Enables scans and gets its address
        self.send_hal_hci_command(hci_packets.ReadBdAddrBuilder())

        cert_read_bd_addr_capture = HalCaptures.ReadBdAddrCompleteCapture()
        assertThat(self.cert_hal.get_hci_event_stream()).emits(
            cert_read_bd_addr_capture)
        address = cert_read_bd_addr_capture.get().GetBdAddr()

        self.send_hal_hci_command(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))

        # DUT Connects
        self.dut_hci.send_command_with_status(
            hci_packets.CreateConnectionBuilder(
                address,
                0xcc18,  # Packet Type
                hci_packets.PageScanRepetitionMode.R0,
                0,
                hci_packets.ClockOffsetValid.INVALID,
                hci_packets.CreateConnectionRoleSwitch.ALLOW_ROLE_SWITCH))

        # Cert Accepts
        connect_request_capture = HalCaptures.ConnectionRequestCapture()
        assertThat(self.cert_hal.get_hci_event_stream()).emits(
            connect_request_capture, timeout=timedelta(seconds=20))
        connection_request = connect_request_capture.get()
        self.send_hal_hci_command(
            hci_packets.AcceptConnectionRequestBuilder(
                connection_request.GetBdAddr(),
                hci_packets.AcceptConnectionRequestRole.REMAIN_SLAVE))

        (dut_handle, cert_handle) = self._verify_connection_complete()

        # Send ACL Data
        self.enqueue_acl_data(
            dut_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'Just SomeAclData'))
        self.send_hal_acl_data(
            cert_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'Just SomeMoreAclData'))

        assertThat(self.cert_hal.get_acl_stream()).emits(
            lambda packet: b'SomeAclData' in packet.payload)
        assertThat(self.dut_hci.get_raw_acl_stream()).emits(
            lambda packet: b'SomeMoreAclData' in packet.data)

    def test_connection_cert_connects(self):
        self.send_hal_hci_command(hci_packets.WritePageTimeoutBuilder(0x4000))

        # DUT Enables scans and gets its address
        self.dut_hci.send_command_with_complete(
            hci_packets.WriteScanEnableBuilder(
                hci_packets.ScanEnable.INQUIRY_AND_PAGE_SCAN))
        self.dut_hci.send_command_with_complete(
            hci_packets.ReadBdAddrBuilder())

        read_bd_addr_capture = HciCaptures.ReadBdAddrCompleteCapture()
        assertThat(self.dut_hci.get_event_stream()).emits(read_bd_addr_capture)
        address = read_bd_addr_capture.get().GetBdAddr()

        # Cert Connects
        self.send_hal_hci_command(
            hci_packets.CreateConnectionBuilder(
                address,
                0xcc18,  # Packet Type
                hci_packets.PageScanRepetitionMode.R0,
                0,
                hci_packets.ClockOffsetValid.INVALID,
                hci_packets.CreateConnectionRoleSwitch.ALLOW_ROLE_SWITCH))

        # DUT Accepts
        connection_request_capture = HciCaptures.ConnectionRequestCapture()
        assertThat(self.dut_hci.get_event_stream()).emits(
            connection_request_capture, timeout=timedelta(seconds=20))
        connection_request = connection_request_capture.get()
        self.dut_hci.send_command_with_status(
            hci_packets.AcceptConnectionRequestBuilder(
                connection_request.GetBdAddr(),
                hci_packets.AcceptConnectionRequestRole.REMAIN_SLAVE))

        (dut_handle, cert_handle) = self._verify_connection_complete()

        # Send ACL Data
        self.enqueue_acl_data(
            dut_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'This is just SomeAclData'))
        self.send_hal_acl_data(
            cert_handle,
            hci_packets.PacketBoundaryFlag.FIRST_NON_AUTOMATICALLY_FLUSHABLE,
            hci_packets.BroadcastFlag.POINT_TO_POINT,
            bytes(b'This is just SomeMoreAclData'))

        assertThat(self.cert_hal.get_acl_stream()).emits(
            lambda packet: b'SomeAclData' in packet.payload)
        assertThat(self.dut_hci.get_raw_acl_stream()).emits(
            lambda packet: b'SomeMoreAclData' in packet.data)
Beispiel #6
0
class CertSecurity(PySecurity):
    """
        Contain all of the certification stack logic for sending and receiving
        HCI commands following the Classic Pairing flows.
    """
    _io_cap_lookup = {
        IoCapabilities.DISPLAY_ONLY:
        hci_packets.IoCapability.DISPLAY_ONLY,
        IoCapabilities.DISPLAY_YES_NO_IO_CAP:
        hci_packets.IoCapability.DISPLAY_YES_NO,
        IoCapabilities.KEYBOARD_ONLY:
        hci_packets.IoCapability.KEYBOARD_ONLY,
        IoCapabilities.NO_INPUT_NO_OUTPUT:
        hci_packets.IoCapability.NO_INPUT_NO_OUTPUT,
    }

    _auth_req_lookup = {
        AuthenticationRequirements.NO_BONDING:
        hci_packets.AuthenticationRequirements.NO_BONDING,
        AuthenticationRequirements.NO_BONDING_MITM_PROTECTION:
        hci_packets.AuthenticationRequirements.NO_BONDING_MITM_PROTECTION,
        AuthenticationRequirements.DEDICATED_BONDING:
        hci_packets.AuthenticationRequirements.DEDICATED_BONDING,
        AuthenticationRequirements.DEDICATED_BONDING_MITM_PROTECTION:
        hci_packets.AuthenticationRequirements.
        DEDICATED_BONDING_MITM_PROTECTION,
        AuthenticationRequirements.GENERAL_BONDING:
        hci_packets.AuthenticationRequirements.GENERAL_BONDING,
        AuthenticationRequirements.GENERAL_BONDING_MITM_PROTECTION:
        hci_packets.AuthenticationRequirements.GENERAL_BONDING_MITM_PROTECTION,
    }

    _oob_present_lookup = {
        OobDataPresent.NOT_PRESENT:
        hci_packets.OobDataPresent.NOT_PRESENT,
        OobDataPresent.P192_PRESENT:
        hci_packets.OobDataPresent.P_192_PRESENT,
        OobDataPresent.P256_PRESENT:
        hci_packets.OobDataPresent.P_256_PRESENT,
        OobDataPresent.P192_AND_256_PRESENT:
        hci_packets.OobDataPresent.P_192_AND_256_PRESENT,
    }

    _hci_event_stream = None
    _io_caps = hci_packets.IoCapability.DISPLAY_ONLY
    _auth_reqs = hci_packets.AuthenticationRequirements.DEDICATED_BONDING_MITM_PROTECTION
    _secure_connections_enabled = False

    _hci = None

    MAX_PIN_LENGTH = 16
    MIN_PIN_LENGTH = 1

    def _enqueue_hci_command(self, command, expect_complete):
        if (expect_complete):
            self._hci.send_command(command)
        else:
            self._hci.send_command(command)

    def __init__(self, device):
        """
            Don't call super b/c the gRPC stream setup will crash test
        """
        logging.info("Cert: Init")
        self._device = device
        self._device.wait_channel_ready()
        self._hci = PyHci(device)
        self._hci.register_for_events(
            hci_packets.EventCode.ENCRYPTION_CHANGE,
            hci_packets.EventCode.CHANGE_CONNECTION_LINK_KEY_COMPLETE,
            hci_packets.EventCode.CENTRAL_LINK_KEY_COMPLETE,
            hci_packets.EventCode.RETURN_LINK_KEYS,
            hci_packets.EventCode.PIN_CODE_REQUEST,
            hci_packets.EventCode.LINK_KEY_REQUEST,
            hci_packets.EventCode.LINK_KEY_NOTIFICATION,
            hci_packets.EventCode.ENCRYPTION_KEY_REFRESH_COMPLETE,
            hci_packets.EventCode.IO_CAPABILITY_REQUEST,
            hci_packets.EventCode.IO_CAPABILITY_RESPONSE,
            hci_packets.EventCode.REMOTE_OOB_DATA_REQUEST,
            hci_packets.EventCode.SIMPLE_PAIRING_COMPLETE,
            hci_packets.EventCode.USER_PASSKEY_NOTIFICATION,
            hci_packets.EventCode.KEYPRESS_NOTIFICATION,
            hci_packets.EventCode.USER_CONFIRMATION_REQUEST,
            hci_packets.EventCode.USER_PASSKEY_REQUEST,
            hci_packets.EventCode.REMOTE_HOST_SUPPORTED_FEATURES_NOTIFICATION)
        self._hci_event_stream = self._hci.get_event_stream()

    def create_bond(self, address, type):
        """
            Creates a bond from the cert perspective
        """
        logging.info("Cert: Creating bond to '%s' from '%s'" %
                     (str(address), str(self._device.address)))
        # TODO(optedoblivion): Trigger connection to Send AuthenticationRequested

    def remove_bond(self, address, type):
        """
            We store the link key locally in the test and pretend
            So to remove_bond we need to Remove the "stored" data
        """
        pass

    def set_io_capabilities(self, io_capabilities):
        """
            Set the IO Capabilities used for the cert
        """
        logging.info(
            "Cert: setting IO Capabilities data to '%s'" %
            self._io_capabilities_name_lookup.get(io_capabilities, "ERROR"))
        self._io_caps = self._io_cap_lookup.get(
            io_capabilities, hci_packets.IoCapability.DISPLAY_ONLY)

    def set_authentication_requirements(self, auth_reqs):
        """
            Establish authentication requirements for the stack
        """
        logging.info("Cert: setting Authentication Requirements data to '%s'" %
                     self._auth_reqs_name_lookup.get(auth_reqs, "ERROR"))
        self._auth_reqs = self._auth_req_lookup.get(
            auth_reqs, hci_packets.AuthenticationRequirements.GENERAL_BONDING)

    def get_oob_data_from_controller(self, pb_oob_data_type):
        """
            Get the Out-of-band data for SSP pairing

            :param pb_oob_data_type: Type of data needed
            :return: a tuple of bytes (192c,192r,256c,256r) with increasing security; bytes may be all 0s depending on pb_oob_data_type value

        """
        oob_data_type = self._oob_present_lookup[pb_oob_data_type]

        if (oob_data_type == hci_packets.OobDataPresent.NOT_PRESENT):
            logging.warn("No data present, no need to call get_oob_data")
            return ([0 for i in range(0, 16)], [0 for i in range(0, 16)],
                    [0 for i in range(0, 16)], [0 for i in range(0, 16)])

        logging.info("Cert: Requesting OOB data")
        if oob_data_type == hci_packets.OobDataPresent.P_192_PRESENT:
            # If host and controller supports secure connections we always used ReadLocalOobExtendedDataRequest
            if self._secure_connections_enabled:
                logging.info("Cert: Requesting P192 Data; secure connections")
                complete_capture = HciCaptures.ReadLocalOobExtendedDataCompleteCapture(
                )
                self._enqueue_hci_command(
                    hci_packets.ReadLocalOobExtendedDataBuilder(), True)
                logging.info("Cert: Waiting for OOB response from controller")
                assertThat(self._hci_event_stream).emits(complete_capture)
                command_complete = complete_capture.get()
                complete = hci_packets.ReadLocalOobExtendedDataCompleteView(
                    command_complete)
                return (list(complete.GetC192()), list(complete.GetR192()),
                        [0 for i in range(0, 16)], [0 for i in range(0, 16)])
            # else we use ReadLocalDataRequest
            else:
                logging.info(
                    "Cert: Requesting P192 Data; no secure connections")
                complete_capture = HciCaptures.ReadLocalOobDataCompleteCapture(
                )
                self._enqueue_hci_command(
                    hci_packets.ReadLocalOobDataBuilder(), True)
                logging.info("Cert: Waiting for OOB response from controller")
                assertThat(self._hci_event_stream).emits(complete_capture)
                command_complete = complete_capture.get()
                complete = hci_packets.ReadLocalOobDataCompleteView(
                    command_complete)
                return (list(complete.GetC()), list(complete.GetR()),
                        [0 for i in range(0, 16)], [0 for i in range(0, 16)])

        # Must be secure connection compatible to use these
        elif oob_data_type == hci_packets.OobDataPresent.P_256_PRESENT:
            logging.info(
                "Cert: Requesting P256 Extended Data; secure connections")
            complete_capture = HciCaptures.ReadLocalOobExtendedDataCompleteCapture(
            )
            self._enqueue_hci_command(
                hci_packets.ReadLocalOobExtendedDataBuilder(), True)
            logging.info("Cert: Waiting for OOB response from controller")
            assertThat(self._hci_event_stream).emits(complete_capture)
            command_complete = complete_capture.get()
            complete = hci_packets.ReadLocalOobExtendedDataCompleteView(
                command_complete)
            return ([0 for i in range(0, 16)], [0 for i in range(0, 16)],
                    list(complete.GetC256()), list(complete.GetR256()))

        else:  # Both
            logging.info(
                "Cert: Requesting P192 AND P256 Extended Data; secure connections"
            )
            complete_capture = HciCaptures.ReadLocalOobExtendedDataCompleteCapture(
            )
            self._enqueue_hci_command(
                hci_packets.ReadLocalOobExtendedDataBuilder(), True)
            logging.info("Cert: Waiting for OOB response from controller")
            assertThat(self._hci_event_stream).emits(complete_capture)
            command_complete = complete_capture.get()
            complete = hci_packets.ReadLocalOobExtendedDataCompleteView(
                command_complete)
            return (list(complete.GetC192()), list(complete.GetR192()),
                    list(complete.GetC256()), list(complete.GetR256()))

    def input_passkey(self, address, passkey):
        """
            Pretend to answer the pairing dialog as a user
        """
        logging.info("Cert: Waiting for PASSKEY request")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.EventWithCode(
                hci_packets.EventCode.USER_PASSKEY_REQUEST))
        logging.info("Cert: Send user input passkey %d for %s" %
                     (passkey, address))
        peer = address.decode('utf-8')
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.ENTRY_STARTED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.CLEARED), True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ERASED), True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.DIGIT_ENTERED),
            True)
        self._enqueue_hci_command(
            hci_packets.SendKeypressNotificationBuilder(
                peer, hci_packets.KeypressNotificationType.ENTRY_COMPLETED),
            True)
        self._enqueue_hci_command(
            hci_packets.UserPasskeyRequestReplyBuilder(peer, passkey), True)

    def input_pin(self, address, pin):
        """
            Pretend to answer the pairing dialog as a user
        """

        if len(pin) > self.MAX_PIN_LENGTH or len(pin) < self.MIN_PIN_LENGTH:
            raise Exception("Pin code must be within range")

        logging.info("Cert: Waiting for PIN request")
        assertThat(self._hci_event_stream).emits(HciMatchers.PinCodeRequest())
        logging.info("Cert: Send user input PIN %s for %s" %
                     (pin.decode(), address))
        peer = address.decode('utf-8')
        pin_list = list(pin)
        # Pad
        for i in range(self.MAX_PIN_LENGTH - len(pin_list)):
            pin_list.append(0)
        self._enqueue_hci_command(
            hci_packets.PinCodeRequestReplyBuilder(peer, len(pin), pin_list),
            True)

    def __send_ui_callback(self, address, callback_type, b, uid, pin):
        """
            Pretend to answer the pairing dailog as a user
        """
        logging.info("Cert: Send user input callback uid:%d; response: %s" %
                     (uid, b))
        # TODO(optedoblivion): Make callback and set it to the module

    def enable_secure_simple_pairing(self):
        """
            This is called when you want to enable SSP for testing
        """
        logging.info("Cert: Sending WRITE_SIMPLE_PAIRING_MODE [True]")
        self._enqueue_hci_command(
            hci_packets.WriteSimplePairingModeBuilder(
                hci_packets.Enable.ENABLED), True)
        logging.info("Cert: Waiting for controller response")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.CommandComplete(
                hci_packets.OpCode.WRITE_SIMPLE_PAIRING_MODE))

    def enable_secure_connections(self):
        """
            This is called when you want to enable secure connections support
        """
        logging.info(
            "Cert: Sending WRITE_SECURE_CONNECTIONS_HOST_SUPPORT [True]")
        self._enqueue_hci_command(
            hci_packets.WriteSecureConnectionsHostSupportBuilder(
                hci_packets.Enable.ENABLED), True)
        logging.info("Cert: Waiting for controller response")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.CommandComplete(
                hci_packets.OpCode.WRITE_SECURE_CONNECTIONS_HOST_SUPPORT))
        # TODO(optedoblivion): Figure this out and remove (see classic_pairing_handler.cc)
        #self._secure_connections_enabled = True

    def send_io_caps(self, address):
        logging.info("Cert: Waiting for IO_CAPABILITY_REQUEST")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.IoCapabilityRequest())
        logging.info("Cert: Sending IO_CAPABILITY_REQUEST_REPLY")
        oob_data_present = hci_packets.OobDataPresent.NOT_PRESENT
        self._enqueue_hci_command(
            hci_packets.IoCapabilityRequestReplyBuilder(
                address.decode('utf8'), self._io_caps, oob_data_present,
                self._auth_reqs), True)

    def accept_pairing(self, dut_address, reply_boolean):
        """
            Here we handle the pairing events at the HCI level
        """
        logging.info("Cert: Waiting for LINK_KEY_REQUEST")
        assertThat(self._hci_event_stream).emits(HciMatchers.LinkKeyRequest())
        logging.info("Cert: Sending LINK_KEY_REQUEST_NEGATIVE_REPLY")
        self._enqueue_hci_command(
            hci_packets.LinkKeyRequestNegativeReplyBuilder(
                dut_address.decode('utf8')), True)
        self.send_io_caps(dut_address)
        logging.info("Cert: Waiting for USER_CONFIRMATION_REQUEST")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.UserConfirmationRequest())
        logging.info("Cert: Sending Simulated User Response '%s'" %
                     reply_boolean)
        if reply_boolean:
            logging.info("Cert: Sending USER_CONFIRMATION_REQUEST_REPLY")
            self._enqueue_hci_command(
                hci_packets.UserConfirmationRequestReplyBuilder(
                    dut_address.decode('utf8')), True)
            logging.info("Cert: Waiting for SIMPLE_PAIRING_COMPLETE")
            assertThat(self._hci_event_stream).emits(
                HciMatchers.SimplePairingComplete())
            logging.info("Cert: Waiting for LINK_KEY_NOTIFICATION")
            assertThat(self._hci_event_stream).emits(
                HciMatchers.LinkKeyNotification())
        else:
            logging.info(
                "Cert: Sending USER_CONFIRMATION_REQUEST_NEGATIVE_REPLY")
            self._enqueue_hci_command(
                hci_packets.UserConfirmationRequestNegativeReplyBuilder(
                    dut_address.decode('utf8')), True)
            logging.info("Cert: Waiting for SIMPLE_PAIRING_COMPLETE")
            assertThat(self._hci_event_stream).emits(
                HciMatchers.SimplePairingComplete())

    def accept_oob_pairing(self, dut_address):
        logging.info("Cert: Waiting for IO_CAPABILITY_RESPONSE")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.IoCapabilityResponse())
        self.send_io_caps(dut_address)
        logging.info("Cert: Waiting for SIMPLE_PAIRING_COMPLETE")
        ssp_complete_capture = HciCaptures.SimplePairingCompleteCapture()
        assertThat(self._hci_event_stream).emits(ssp_complete_capture)
        ssp_complete = ssp_complete_capture.get()
        logging.info(ssp_complete.GetStatus())
        assertThat(ssp_complete.GetStatus()).isEqualTo(
            hci_packets.ErrorCode.SUCCESS)

    def on_user_input(self, dut_address, reply_boolean, expected_ui_event):
        """
            Cert doesn't need the test to respond to the ui event
            Cert responds in accept pairing
        """
        pass

    def wait_for_bond_event(self, expected_bond_event):
        """
            A bond event will be triggered once the bond process
            is complete.  For the DUT we need to wait for it,
            for Cert it isn't needed.
        """
        pass

    def enforce_security_policy(self, address, type, policy):
        """
            Pass for now
        """
        pass

    def wait_for_enforce_security_event(self, expected_enforce_security_event):
        """
            Cert side needs to pass
        """
        pass

    def wait_for_disconnect_event(self):
        """
            Cert side needs to pass
        """
        logging.info("Cert: Waiting for DISCONNECT_COMPLETE")
        assertThat(self._hci_event_stream).emits(
            HciMatchers.DisconnectionComplete())

    def close(self):
        safeClose(self._hci)