def extract_hci_event_with_code(packet_bytes, event_code=None):
hci_event = hci_packets.EventPacketView(bt_packets.PacketViewLittleEndian(list(packet_bytes)))
if hci_event is None:
return None
if event_code is not None and hci_event.GetEventCode() != event_code:
return None
return hci_event
def ReadBdAddrCompleteCapture():
return Capture(lambda packet: b'\x0e\x0a\x01\x09\x10' in packet.event,
lambda packet: hci_packets.ReadBdAddrCompleteView(
hci_packets.CommandCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet.event))))))
def LeConnectionCompleteCapture():
return Capture(lambda packet: packet.event[0] == 0x3e
and (packet.event[2] == 0x01 or packet.event[2] == 0x0a),
lambda packet: hci_packets.LeConnectionCompleteView(
hci_packets.LeMetaEventView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet.event))))))
def ReadBdAddrCompleteCapture():
return Capture(
lambda packet: packet.payload[0:5] == b'\x0e\x0a\x01\x09\x10',
lambda packet: hci_packets.ReadBdAddrCompleteView(
hci_packets.CommandCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(list(packet.payload))
))))
def _extract_matching_event(packet_bytes, event_code):
event = hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(list(packet_bytes)))
if event is None:
return None
if event_code is not None and event.GetEventCode() != event_code:
return None
return event
def get_connect_request(packet):
if b'\x04\x0a' in packet.event:
nonlocal connection_request
connection_request = hci_packets.ConnectionRequestView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet.event))))
return True
return False
def get_handle(packet_bytes):
if b'\x03\x0b\x00' in packet_bytes:
nonlocal conn_handle
cc_view = hci_packets.ConnectionCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet_bytes))))
conn_handle = cc_view.GetConnectionHandle()
return True
return False
def _handle_control_packet(self, l2cap_packet):
packet_bytes = l2cap_packet.payload
l2cap_view = l2cap_packets.BasicFrameView(
bt_packets.PacketViewLittleEndian(list(packet_bytes)))
if l2cap_view.GetChannelId() != 1:
return
l2cap_control_view = l2cap_packets.ControlView(l2cap_view.GetPayload())
fn = self.control_table.get(l2cap_control_view.GetCode())
if fn is not None:
fn(l2cap_control_view)
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
def payload_handle(packet):
packet_bytes = packet.payload
if b'\x3e\x13\x01\x00' in packet_bytes:
nonlocal conn_handle
cc_view = hci_packets.LeConnectionCompleteView(
hci_packets.LeMetaEventView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet_bytes)))))
conn_handle = cc_view.GetConnectionHandle()
return True
return False
def get_address_from_complete(packet):
packet_bytes = packet.event
if b'\x0e\x0a\x01\x09\x10' in packet_bytes:
nonlocal address
addr_view = hci_packets.ReadBdAddrCompleteView(
hci_packets.CommandCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet_bytes)))))
address = addr_view.GetBdAddr()
return True
return False
def get_handle(packet):
packet_bytes = packet.event
nonlocal handle
nonlocal address
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()
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.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet_bytes)))))
handle = cc_view.GetConnectionHandle()
address = cc_view.GetPeerResolvablePrivateAddress()
return True
return False
def ConnectionCompleteCapture():
return Capture(
lambda packet: packet.payload[0:3] == b'\x03\x0b\x00',
lambda packet: hci_packets.ConnectionCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(list(packet.payload)))))
def ConnectionCompleteCapture():
return Capture(lambda packet: b'\x03\x0b\x00' in packet.event,
lambda packet: hci_packets.ConnectionCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet.event)))))
def ConnectionRequestCapture():
return Capture(lambda packet: b'\x04\x0a' in packet.event,
lambda packet: hci_packets.ConnectionRequestView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(
list(packet.event)))))
def ConnectionRequestCapture():
return Capture(
lambda packet: packet.payload[0:2] == b'\x04\x0a',
lambda packet: hci_packets.ConnectionRequestView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(list(packet.payload)))))
def _basic_frame_with_fcs(packet):
if packet is None:
return None
return l2cap_packets.BasicFrameWithFcsView(
bt_packets.PacketViewLittleEndian(list(packet.payload)))
def DisconnectionCompleteCapture():
return Capture(
lambda packet: packet.payload[0:2] == b'\x05\x04',
lambda packet: hci_packets.DisconnectionCompleteView(
hci_packets.EventPacketView(
bt_packets.PacketViewLittleEndian(list(packet.payload)))))
def LogEventCode():
return lambda event: logging.info(
"Received event: %x" % hci_packets.EventView(
bt_packets.PacketViewLittleEndian(list(event.payload))
).GetEventCode())
