Merge changes I099e53e6,Icab0e0d7,Ic8b73158,I989b35eb,Ie3bf7c90, ... am: 40be9fda62 (7683af88) · Commits · e / os / android_packages_modules_Bluetooth

system/gd/cert/captures.py

+18 −0

Original line number	Diff line number	Diff line
		@@ -16,7 +16,10 @@

		import bluetooth_packets_python3 as bt_packets
		from bluetooth_packets_python3 import hci_packets
		from bluetooth_packets_python3 import l2cap_packets
		from bluetooth_packets_python3.l2cap_packets import CommandCode
		from cert.capture import Capture
		from cert.matchers import L2capMatchers


		def ReadBdAddrCompleteCapture():
		@@ -42,3 +45,18 @@ def ConnectionCompleteCapture():
		hci_packets.EventPacketView(
		bt_packets.PacketViewLittleEndian(
		list(packet.event)))))


		class L2capCaptures(object):

		@staticmethod
		def ConnectionResponse(scid):
		return Capture(
		L2capMatchers.ConnectionResponse(scid),
		L2capCaptures._extract_connection_response)

		@staticmethod
		def _extract_connection_response(packet):
		frame = L2capMatchers.control_frame_with_code(
		packet, CommandCode.CONNECTION_RESPONSE)
		return l2cap_packets.ConnectionResponseView(frame)

system/gd/cert/event_stream.py

+4 −2

Original line number	Diff line number	Diff line
		@@ -43,10 +43,12 @@ class FilteringEventStream(IEventStream):
		self.event_queue = SimpleQueue()
		self.stream = stream

		self.stream.register_callback(self.__event_callback, self.filter_fn)
		self.stream.register_callback(
		self.__event_callback,
		lambda packet: self.filter_fn(packet) is not None)

		def __event_callback(self, event):
		self.event_queue.put(event)
		self.event_queue.put(self.filter_fn(event))

		def get_event_queue(self):
		return self.event_queue

system/gd/cert/matchers.py

+77 −24

Original line number	Diff line number	Diff line
		@@ -18,6 +18,8 @@ import bluetooth_packets_python3 as bt_packets
		from bluetooth_packets_python3 import l2cap_packets
		from bluetooth_packets_python3.l2cap_packets import CommandCode
		from bluetooth_packets_python3.l2cap_packets import ConnectionResponseResult
		from bluetooth_packets_python3.l2cap_packets import InformationRequestInfoType
		import logging


		class L2capMatchers(object):
		@@ -51,12 +53,32 @@ class L2capMatchers(object):
		return lambda packet: L2capMatchers._is_control_frame_with_code(packet, CommandCode.COMMAND_REJECT)

		@staticmethod
		def SupervisoryFrame(scid, req_seq=None, f=None, s=None, p=None):
		return lambda packet: L2capMatchers._is_matching_supervisory_frame(packet, scid, req_seq, f, s, p)
		def SFrame(req_seq=None, f=None, s=None, p=None):
		return lambda packet: L2capMatchers._is_matching_supervisory_frame(packet, req_seq, f, s, p)

		@staticmethod
		def InformationFrame(scid, tx_seq=None, payload=None):
		return lambda packet: L2capMatchers._is_matching_information_frame(packet, scid, tx_seq, payload)
		def IFrame(tx_seq=None, payload=None):
		return lambda packet: L2capMatchers._is_matching_information_frame(packet, tx_seq, payload)

		@staticmethod
		def Data(payload):
		return lambda packet: packet.GetPayload().GetBytes() == payload

		# this is a hack - should be removed
		@staticmethod
		def PartialData(payload):
		return lambda packet: payload in packet.GetPayload().GetBytes()

		@staticmethod
		def ExtractBasicFrame(scid):
		return lambda packet: L2capMatchers._basic_frame_for(packet, scid)

		@staticmethod
		def InformationResponseExtendedFeatures(supports_ertm=None,
		supports_streaming=None,
		supports_fcs=None,
		supports_fixed_channels=None):
		return lambda packet: L2capMatchers._is_matching_information_response_extended_features(packet, supports_ertm, supports_streaming, supports_fcs, supports_fixed_channels)

		@staticmethod
		def _basic_frame(packet):
		@@ -66,40 +88,40 @@ class L2capMatchers(object):
		bt_packets.PacketViewLittleEndian(list(packet.payload)))

		@staticmethod
		def _information_frame(packet, scid):
		def _basic_frame_for(packet, scid):
		frame = L2capMatchers._basic_frame(packet)
		if frame.GetChannelId() != scid:
		return None
		standard_frame = l2cap_packets.StandardFrameView(frame)
		return frame

		@staticmethod
		def _information_frame(packet):
		standard_frame = l2cap_packets.StandardFrameView(packet)
		if standard_frame.GetFrameType() != l2cap_packets.FrameType.I_FRAME:
		return None
		return l2cap_packets.EnhancedInformationFrameView(standard_frame)

		@staticmethod
		def _supervisory_frame(packet, scid):
		frame = L2capMatchers._basic_frame(packet)
		if frame.GetChannelId() != scid:
		return None
		standard_frame = l2cap_packets.StandardFrameView(frame)
		def _supervisory_frame(packet):
		standard_frame = l2cap_packets.StandardFrameView(packet)
		if standard_frame.GetFrameType() != l2cap_packets.FrameType.S_FRAME:
		return None
		return l2cap_packets.EnhancedSupervisoryFrameView(standard_frame)

		@staticmethod
		def _is_matching_information_frame(packet, scid, tx_seq, payload):
		frame = L2capMatchers._information_frame(packet, scid)
		def _is_matching_information_frame(packet, tx_seq, payload):
		frame = L2capMatchers._information_frame(packet)
		if frame is None:
		return False
		if tx_seq is not None and frame.GetTxSeq() != tx_seq:
		return False
		if payload is not None and frame.GetPayload(
		) != payload: # TODO(mylesgw) this doesn't work
		if payload is not None and frame.GetPayload().GetBytes() != payload:
		return False
		return True

		@staticmethod
		def _is_matching_supervisory_frame(packet, scid, req_seq, f, s, p):
		frame = L2capMatchers._supervisory_frame(packet, scid)
		def _is_matching_supervisory_frame(packet, req_seq, f, s, p):
		frame = L2capMatchers._supervisory_frame(packet)
		if frame is None:
		return False
		if req_seq is not None and frame.GetReqSeq() != req_seq:
		@@ -114,13 +136,12 @@ class L2capMatchers(object):

		@staticmethod
		def _control_frame(packet):
		frame = L2capMatchers._basic_frame(packet)
		if frame is None or frame.GetChannelId() != 1:
		if packet.GetChannelId() != 1:
		return None
		return l2cap_packets.ControlView(frame.GetPayload())
		return l2cap_packets.ControlView(packet.GetPayload())

		@staticmethod
		def _control_frame_with_code(packet, code):
		def control_frame_with_code(packet, code):
		frame = L2capMatchers._control_frame(packet)
		if frame is None or frame.GetCode() != code:
		return None
		@@ -128,11 +149,11 @@ class L2capMatchers(object):

		@staticmethod
		def _is_control_frame_with_code(packet, code):
		return L2capMatchers._control_frame_with_code(packet, code) is not None
		return L2capMatchers.control_frame_with_code(packet, code) is not None

		@staticmethod
		def _is_matching_connection_response(packet, scid):
		frame = L2capMatchers._control_frame_with_code(
		frame = L2capMatchers.control_frame_with_code(
		packet, CommandCode.CONNECTION_RESPONSE)
		if frame is None:
		return False
		@@ -143,10 +164,42 @@ class L2capMatchers(object):

		@staticmethod
		def _is_matching_disconnection_response(packet, scid, dcid):
		frame = L2capMatchers._control_frame_with_code(
		frame = L2capMatchers.control_frame_with_code(
		packet, CommandCode.DISCONNECTION_RESPONSE)
		if frame is None:
		return False
		response = l2cap_packets.DisconnectionResponseView(frame)
		return response.GetSourceCid() == scid and response.GetDestinationCid(
		) == dcid

		@staticmethod
		def _information_response_with_type(packet, info_type):
		frame = L2capMatchers.control_frame_with_code(
		packet, CommandCode.INFORMATION_RESPONSE)
		if frame is None:
		return None
		response = l2cap_packets.InformationResponseView(frame)
		if response.GetInfoType() != info_type:
		return None
		return response

		@staticmethod
		def _is_matching_information_response_extended_features(
		packet, supports_ertm, supports_streaming, supports_fcs,
		supports_fixed_channels):
		frame = L2capMatchers._information_response_with_type(
		packet, InformationRequestInfoType.EXTENDED_FEATURES_SUPPORTED)
		if frame is None:
		return False
		features = l2cap_packets.InformationResponseExtendedFeaturesView(frame)
		if supports_ertm is not None and features.GetEnhancedRetransmissionMode(
		) != supports_ertm:
		return False
		if supports_streaming is not None and features.GetStreamingMode != supports_streaming:
		return False
		if supports_fcs is not None and features.GetFcsOption() != supports_fcs:
		return False
		if supports_fixed_channels is not None and features.GetFixedChannels(
		) != supports_fixed_channels:
		return False
		return True

system/gd/l2cap/classic/cert/cert_l2cap.py

+103 −113

Original line number	Diff line number	Diff line
		@@ -21,21 +21,75 @@ from cert.truth import assertThat
		import bluetooth_packets_python3 as bt_packets
		from bluetooth_packets_python3 import l2cap_packets
		from bluetooth_packets_python3.l2cap_packets import CommandCode
		from bluetooth_packets_python3.l2cap_packets import Final
		from bluetooth_packets_python3.l2cap_packets import SegmentationAndReassembly
		from bluetooth_packets_python3.l2cap_packets import SupervisoryFunction
		from bluetooth_packets_python3.l2cap_packets import Poll
		from bluetooth_packets_python3.l2cap_packets import InformationRequestInfoType
		from cert.event_stream import FilteringEventStream
		from cert.event_stream import IEventStream
		from cert.matchers import L2capMatchers
		from cert.captures import L2capCaptures


		class CertL2capChannel(IEventStream):

		def __init__(self, device, scid, acl_stream):
		def __init__(self, device, scid, dcid, acl_stream, acl, control_channel):
		self._device = device
		self._scid = scid
		self._our_acl_view = acl_stream
		self._dcid = dcid
		self._acl_stream = acl_stream
		self._acl = acl
		self._control_channel = control_channel
		self._our_acl_view = FilteringEventStream(
		acl_stream, L2capMatchers.ExtractBasicFrame(scid))

		def get_event_queue(self):
		return self._our_acl_view.get_event_queue()

		def send(self, packet):
		frame = l2cap_packets.BasicFrameBuilder(self._dcid, packet)
		self._acl.send(frame.Serialize())

		def send_i_frame(self,
		tx_seq,
		req_seq,
		f=Final.NOT_SET,
		sar=SegmentationAndReassembly.UNSEGMENTED,
		payload=None):
		frame = l2cap_packets.EnhancedInformationFrameBuilder(
		self._dcid, tx_seq, f, req_seq, sar, payload)
		self._acl.send(frame.Serialize())

		def send_s_frame(self,
		req_seq,
		s=SupervisoryFunction.RECEIVER_READY,
		p=Poll.NOT_SET,
		f=Final.NOT_SET):
		frame = l2cap_packets.EnhancedSupervisoryFrameBuilder(
		self._dcid, s, p, f, req_seq)
		self._acl.send(frame.Serialize())

		def send_information_request(self, type):
		assertThat(self._scid).isEqualTo(1)
		signal_id = 3
		information_request = l2cap_packets.InformationRequestBuilder(
		signal_id, type)
		self.send(information_request)

		def send_extended_features_request(self):
		self.send_information_request(
		InformationRequestInfoType.EXTENDED_FEATURES_SUPPORTED)

		def disconnect_and_verify(self):
		assertThat(self._scid).isNotEqualTo(1)
		self._control_channel.send(
		l2cap_packets.DisconnectionRequestBuilder(1, self._dcid,
		self._scid))

		assertThat(self._control_channel).emits(
		L2capMatchers.DisconnectionResponse(self._scid, self._dcid))


		class CertL2cap(Closable):

		@@ -64,8 +118,9 @@ class CertL2cap(Closable):
		}

		self.scid_to_dcid = {}
		self.ertm_tx_window_size = 10
		self.ertm_max_transmit = 20

		self.ertm_option = None
		self.fcs_option = None

		def close(self):
		self._acl_manager.close()
		@@ -74,46 +129,49 @@ class CertL2cap(Closable):
		def connect_acl(self, remote_addr):
		self._acl = self._acl_manager.initiate_connection(remote_addr)
		self._acl.wait_for_connection_complete()
		self.get_acl_stream().register_callback(self._handle_control_packet)
		self.control_channel = CertL2capChannel(
		self._device,
		1,
		1,
		self._get_acl_stream(),
		self._acl,
		control_channel=None)
		self._get_acl_stream().register_callback(self._handle_control_packet)

		def open_channel(self, signal_id, psm, scid):
		# what is the 1 here for?
		open_channel = l2cap_packets.BasicFrameBuilder(
		1, l2cap_packets.ConnectionRequestBuilder(signal_id, psm, scid))
		self.send_acl(open_channel)
		self.control_channel.send(
		l2cap_packets.ConnectionRequestBuilder(signal_id, psm, scid))

		assertThat(self._acl).emits(L2capMatchers.ConnectionResponse(scid))
		return CertL2capChannel(self._device, scid, self.get_acl_stream())
		response = L2capCaptures.ConnectionResponse(scid)
		assertThat(self.control_channel).emits(response)
		return CertL2capChannel(self._device, scid,
		response.get().GetDestinationCid(),
		self._get_acl_stream(), self._acl,
		self.control_channel)

		# prefer to use channel abstraction instead, if at all possible
		def send_acl(self, packet):
		self._acl.send(packet.Serialize())

		# temporary until clients migrated
		def get_acl_stream(self):
		return self._acl_manager.get_acl_stream()

		# temporary until clients migrated
		def get_acl(self):
		return self._acl
		def get_control_channel(self):
		return self.control_channel

		# temporary until clients migrated
		def get_dcid(self, scid):
		return self.scid_to_dcid[scid]
		def _get_acl_stream(self):
		return self._acl_manager.get_acl_stream()

		# more of a hack for the moment
		def turn_on_ertm(self, tx_window_size=10, max_transmit=20):
		self.ertm_tx_window_size = tx_window_size
		self.ertm_max_transmit = max_transmit
		self.control_table[
		CommandCode.
		CONNECTION_RESPONSE] = self._on_connection_response_use_ertm
		self.ertm_option = l2cap_packets.RetransmissionAndFlowControlConfigurationOption(
		)
		self.ertm_option.mode = l2cap_packets.RetransmissionAndFlowControlModeOption.L2CAP_BASIC
		self.ertm_option.tx_window_size = tx_window_size
		self.ertm_option.max_transmit = max_transmit
		self.ertm_option.retransmission_time_out = 2000
		self.ertm_option.monitor_time_out = 12000
		self.ertm_option.maximum_pdu_size = 1010

		# more of a hack for the moment
		def turn_on_ertm_and_fcs(self):
		self.control_table[
		CommandCode.
		CONNECTION_RESPONSE] = self._on_connection_response_use_ertm_and_fcs
		def turn_on_fcs(self):
		self.fcs_option = l2cap_packets.FrameCheckSequenceOption()
		self.fcs_option.fcs_type = l2cap_packets.FcsType.DEFAULT

		# more of a hack for the moment
		def ignore_config_and_connections(self):
		@@ -144,9 +202,7 @@ class CertL2cap(Closable):
		sid, cid, cid, l2cap_packets.ConnectionResponseResult.SUCCESS,
		l2cap_packets.ConnectionResponseStatus.
		NO_FURTHER_INFORMATION_AVAILABLE)
		connection_response_l2cap = l2cap_packets.BasicFrameBuilder(
		1, connection_response)
		self.send_acl(connection_response_l2cap)
		self.control_channel.send(connection_response)
		return True

		def _on_connection_response_default(self, l2cap_control_view):
		@@ -157,72 +213,15 @@ class CertL2cap(Closable):
		dcid = connection_response_view.GetDestinationCid()
		self.scid_to_dcid[scid] = dcid

		config_request = l2cap_packets.ConfigurationRequestBuilder(
		sid + 1, dcid, l2cap_packets.Continuation.END, [])
		config_request_l2cap = l2cap_packets.BasicFrameBuilder(
		1, config_request)
		self.send_acl(config_request_l2cap)
		return True

		def _on_connection_response_use_ertm(self, l2cap_control_view):
		connection_response_view = l2cap_packets.ConnectionResponseView(
		l2cap_control_view)
		sid = connection_response_view.GetIdentifier()
		scid = connection_response_view.GetSourceCid()
		dcid = connection_response_view.GetDestinationCid()
		self.scid_to_dcid[scid] = dcid

		# FIXME: This doesn't work!
		ertm_option = l2cap_packets.RetransmissionAndFlowControlConfigurationOption(
		)
		ertm_option.mode = l2cap_packets.RetransmissionAndFlowControlModeOption.L2CAP_BASIC
		ertm_option.tx_window_size = self.ertm_tx_window_size
		ertm_option.max_transmit = self.ertm_max_transmit
		ertm_option.retransmission_time_out = 2000
		ertm_option.monitor_time_out = 12000
		ertm_option.maximum_pdu_size = 1010

		options = [ertm_option]

		config_request = l2cap_packets.ConfigurationRequestBuilder(
		sid + 1, dcid, l2cap_packets.Continuation.END, options)

		config_request_l2cap = l2cap_packets.BasicFrameBuilder(
		1, config_request)

		self.send_acl(config_request_l2cap)
		return True

		def _on_connection_response_use_ertm_and_fcs(self, l2cap_control_view):
		connection_response_view = l2cap_packets.ConnectionResponseView(
		l2cap_control_view)
		sid = connection_response_view.GetIdentifier()
		scid = connection_response_view.GetSourceCid()
		dcid = connection_response_view.GetDestinationCid()
		self.scid_to_dcid[scid] = dcid

		# FIXME: This doesn't work!
		ertm_option = l2cap_packets.RetransmissionAndFlowControlConfigurationOption(
		)
		ertm_option.mode = l2cap_packets.RetransmissionAndFlowControlModeOption.L2CAP_BASIC
		ertm_option.tx_window_size = self.ertm_tx_window_size
		ertm_option.max_transmit = self.ertm_max_transmit
		ertm_option.retransmission_time_out = 2000
		ertm_option.monitor_time_out = 12000
		ertm_option.maximum_pdu_size = 1010

		fcs_option = l2cap_packets.FrameCheckSequenceOption()
		fcs_option.fcs_type = l2cap_packets.FcsType.DEFAULT

		options = [ertm_option, fcs_option]
		options = []
		if self.ertm_option is not None:
		options.append(self.ertm_option)
		if self.fcs_option is not None:
		options.append(self.fcs_option)

		config_request = l2cap_packets.ConfigurationRequestBuilder(
		sid + 1, dcid, l2cap_packets.Continuation.END, options)

		config_request_l2cap = l2cap_packets.BasicFrameBuilder(
		1, config_request)

		self.send_acl(config_request_l2cap)
		self.control_channel.send(config_request)
		return True

		def _on_connection_response_configuration_request_with_unknown_options_and_hint(
		@@ -258,9 +257,7 @@ class CertL2cap(Closable):
		config_response = l2cap_packets.ConfigurationResponseBuilder(
		sid, self.scid_to_dcid.get(dcid, 0), l2cap_packets.Continuation.END,
		l2cap_packets.ConfigurationResponseResult.SUCCESS, [])
		config_response_l2cap = l2cap_packets.BasicFrameBuilder(
		1, config_response)
		self.send_acl(config_response_l2cap)
		self.control_channel.send(config_response)

		def _on_configuration_request_unacceptable_parameters(
		self, l2cap_control_view):
		@@ -281,9 +278,7 @@ class CertL2cap(Closable):
		sid, self.scid_to_dcid.get(dcid, 0), l2cap_packets.Continuation.END,
		l2cap_packets.ConfigurationResponseResult.UNACCEPTABLE_PARAMETERS,
		[mtu_opt, fcs_opt, rfc_opt])
		config_response_l2cap = l2cap_packets.BasicFrameBuilder(
		1, config_response)
		self.send_acl(config_response_l2cap)
		self.control_channel.send(config_response)

		def _on_configuration_response_default(self, l2cap_control_view):
		configuration_response = l2cap_packets.ConfigurationResponseView(
		@@ -298,9 +293,7 @@ class CertL2cap(Closable):
		dcid = disconnection_request.GetDestinationCid()
		disconnection_response = l2cap_packets.DisconnectionResponseBuilder(
		sid, dcid, scid)
		disconnection_response_l2cap = l2cap_packets.BasicFrameBuilder(
		1, disconnection_response)
		self.send_acl(disconnection_response_l2cap)
		self.control_channel.send(disconnection_response)

		def _on_disconnection_response_default(self, l2cap_control_view):
		disconnection_response = l2cap_packets.DisconnectionResponseView(
		@@ -314,21 +307,18 @@ class CertL2cap(Closable):
		if information_type == l2cap_packets.InformationRequestInfoType.CONNECTIONLESS_MTU:
		response = l2cap_packets.InformationResponseConnectionlessMtuBuilder(
		sid, l2cap_packets.InformationRequestResult.SUCCESS, 100)
		response_l2cap = l2cap_packets.BasicFrameBuilder(1, response)
		self.send_acl(response_l2cap)
		self.control_channel.send(response)
		return
		if information_type == l2cap_packets.InformationRequestInfoType.EXTENDED_FEATURES_SUPPORTED:
		response = l2cap_packets.InformationResponseExtendedFeaturesBuilder(
		sid, l2cap_packets.InformationRequestResult.SUCCESS, 0, 0, 0, 1,
		0, 1, 0, 0, 0, 0)
		response_l2cap = l2cap_packets.BasicFrameBuilder(1, response)
		self.send_acl(response_l2cap)
		self.control_channel.send(response)
		return
		if information_type == l2cap_packets.InformationRequestInfoType.FIXED_CHANNELS_SUPPORTED:
		response = l2cap_packets.InformationResponseFixedChannelsBuilder(
		sid, l2cap_packets.InformationRequestResult.SUCCESS, 2)
		response_l2cap = l2cap_packets.BasicFrameBuilder(1, response)
		self.send_acl(response_l2cap)
		self.control_channel.send(response)
		return

		def _on_information_response_default(self, l2cap_control_view):

system/gd/l2cap/classic/cert/l2cap_test.py

+313 −798

File changed.

Preview size limit exceeded, changes collapsed.