def extcap_capture(interface, fifo, control_in, control_out, channel, tap):
"""Start the sniffer to capture packets"""
# baudrate = detect_baudrate(interface)
interface_port = str(interface).split(':')[0]
interface_baudrate = str(interface).split(':')[1]
with _StreamCloser(StreamOpen('u', interface_port, False, baudrate=int(interface_baudrate))) as stream, \
WpanApi(stream, nodeid=DEFAULT_NODEID) as wpan_api:
wpan_api.prop_set_value(SPINEL.PROP_PHY_ENABLED, 1)
if sys.platform == 'win32':
python_path = subprocess.Popen(
'py -3 -c "import sys; print(sys.executable)"',
stdout=subprocess.PIPE,
shell=True,
).stdout.readline().decode().strip()
sniffer_py = os.path.join(os.path.dirname(python_path), 'Scripts',
'sniffer.py')
cmd = ['python', sniffer_py]
else:
cmd = ['sniffer.py']
cmd += [
'-c', channel, '-u', interface_port, '--crc', '--rssi', '-b',
interface_baudrate, '-o',
str(fifo), '--is-fifo', '--use-host-timestamp'
]
if tap:
cmd.append('--tap')
subprocess.Popen(cmd).wait()
def open(self):
'''Opens transport for communication.'''
self._stream = StreamOpen(self._stream_descriptor[0],
self._stream_descriptor[1], False)
# FIXME: remove node id from constructor after WpanAPI is refactored
self._wpan = WpanApi(self._stream, 666)
self._wpan.queue_register(SPINEL.HEADER_DEFAULT)
self._wpan.queue_register(SPINEL.HEADER_ASYNC)
self._wpan.callback_register(SPINEL.PROP_STREAM_NET,
self._wpan_receive)
if (self._config[NCPTransport.CFG_KEY_RESET]
) and not self._wpan.cmd_reset():
raise Exception(
'Failed to reset NCP. Please flash connectivity firmware.')
logger.info('Attaching to the network')
if (not self._attach_to_network()):
logger.error("Failed to attach to the network")
raise Exception('Unable to attach')
self._ml_eid = ipaddress.ip_address(
self._wpan.prop_get_value(SPINEL.PROP_IPV6_ML_ADDR))
self._ml_prefix = self._wpan.prop_get_value(SPINEL.PROP_IPV6_ML_PREFIX)
logger.info("Done")
self.print_addresses()
def main():
""" Top-level main for sniffer host-side tool. """
(options, remaining_args) = parse_args()
if options.debug:
CONFIG.debug_set_level(options.debug)
# Set default stream to pipe
stream_type = 'p'
stream_descriptor = "../../examples/apps/ncp/ot-ncp-ftd "+options.nodeid
if options.uart:
stream_type = 'u'
stream_descriptor = options.uart
elif options.socket:
stream_type = 's'
stream_descriptor = options.socket
elif options.pipe:
stream_type = 'p'
stream_descriptor = options.pipe
if options.nodeid:
stream_descriptor += " "+str(options.nodeid)
else:
if len(remaining_args) > 0:
stream_descriptor = " ".join(remaining_args)
stream = StreamOpen(stream_type, stream_descriptor, False)
if stream is None: exit()
wpan_api = WpanApi(stream, options.nodeid)
sniffer_init(wpan_api, options)
pcap = PcapCodec()
hdr = pcap.encode_header()
if options.hex:
hdr = util.hexify_str(hdr)+"\n"
sys.stdout.write(hdr)
sys.stdout.flush()
try:
tid = SPINEL.HEADER_ASYNC
prop_id = SPINEL.PROP_STREAM_RAW
while True:
result = wpan_api.queue_wait_for_prop(prop_id, tid)
if result and result.prop == prop_id:
length = wpan_api.parse_S(result.value)
pkt = result.value[2:2+length]
if options.ti_crc:
pkt = ti_crc(pkt)
pkt = pcap.encode_frame(pkt)
if options.hex:
pkt = util.hexify_str(pkt)+"\n"
sys.stdout.write(pkt)
sys.stdout.flush()
except KeyboardInterrupt:
pass
if wpan_api:
wpan_api.stream.close()
def serialopen(interface, log_file):
"""
Open serial to indentify OpenThread sniffer
:param interface: string, eg: '/dev/ttyUSB0 - Zolertia Firefly platform', '/dev/ttyACM1 - nRF52840 OpenThread Device'
"""
sys.stdout = log_file
sys.stderr = log_file
interface = str(interface).split()[0]
baudrate = None
for speed in COMMON_BAUDRATE:
with _StreamCloser(StreamOpen('u', interface, False, baudrate=speed)) as stream, \
WpanApi(stream, nodeid=DEFAULT_NODEID, timeout=0.1) as wpan_api:
# result should not be None for both NCP and RCP
result = wpan_api.prop_get_value(
SPINEL.PROP_CAPS) # confirm OpenThread Sniffer
# check whether or not is OpenThread Sniffer
if result is not None:
baudrate = speed
break
if baudrate is not None:
if sys.platform == 'win32':
# Wireshark only shows the value of key `display`('OpenThread Sniffer').
# Here intentionally appends interface in the end (e.g. 'OpenThread Sniffer: COM0').
print('interface {value=%s:%s}{display=OpenThread Sniffer %s}' %
(interface, baudrate, interface),
file=sys.__stdout__,
flush=True)
else:
# On Linux or MacOS, wireshark will show the concatenation of the content of `display`
# and `interface` by default (e.g. 'OpenThread Sniffer: /dev/ttyACM0').
print('interface {value=%s:%s}{display=OpenThread Sniffer}' %
(interface, baudrate),
file=sys.__stdout__,
flush=True)
def main():
""" Top-level main for sniffer host-side tool. """
(options, remaining_args) = parse_args()
if options.debug:
CONFIG.debug_set_level(options.debug)
# Set default stream to pipe
stream_type = 'p'
stream_descriptor = "../../examples/apps/ncp/ot-ncp-ftd " + options.nodeid
if options.uart:
stream_type = 'u'
stream_descriptor = options.uart
elif options.socket:
stream_type = 's'
stream_descriptor = options.socket
elif options.pipe:
stream_type = 'p'
stream_descriptor = options.pipe
if options.nodeid:
stream_descriptor += " " + str(options.nodeid)
else:
if len(remaining_args) > 0:
stream_descriptor = " ".join(remaining_args)
stream = StreamOpen(stream_type, stream_descriptor, False,
options.baudrate)
if stream is None: exit()
wpan_api = WpanApi(stream, options.nodeid)
result = sniffer_init(wpan_api, options)
if not result:
sys.stderr.write("ERROR: failed to initialize sniffer\n")
exit()
else:
sys.stderr.write("SUCCESS: sniffer initialized\nSniffing...\n")
pcap = PcapCodec()
hdr = pcap.encode_header()
if options.hex:
hdr = util.hexify_str(hdr) + "\n"
sys.stdout.write(hdr)
sys.stdout.flush()
epoch = datetime(1970, 1, 1)
timebase = datetime.utcnow() - epoch
timebase_sec = timebase.days * 24 * 60 * 60 + timebase.seconds
timebase_usec = timebase.microseconds
try:
tid = SPINEL.HEADER_ASYNC
prop_id = SPINEL.PROP_STREAM_RAW
while True:
result = wpan_api.queue_wait_for_prop(prop_id, tid)
if result and result.prop == prop_id:
length = wpan_api.parse_S(result.value)
pkt = result.value[2:2 + length]
if options.crc:
pkt = crc(pkt)
# metadata format (totally 17 bytes):
# 0. RSSI(int8)
# 1. Noise Floor(int8)
# 2. Flags(uint16)
# 3. PHY-specific data struct contains:
# 3.0 Channel(uint8)
# 3.1 LQI(uint8)
# 3.2 Timestamp Msec(uint32)
# 3.3 Timestamp Usec(uint16)
# 4. Vendor data struct contains:
# 4.0 Receive error(uint8)
if len(result.value) == 2 + length + 17:
metadata = wpan_api.parse_fields(
result.value[2 + length:2 + length + 17],
"ccSt(CCLS)t(i)")
timestamp_usec = timebase_usec + metadata[3][
2] * 1000 + metadata[3][3]
timestamp_sec = timebase_sec + timestamp_usec / 1000000
timestamp_usec = timestamp_usec % 1000000
if options.rssi:
pkt = pkt[:-2] + chr(metadata[0] & 0xff) + chr(0x80)
# Some old version NCP doesn't contain timestamp information in metadata
else:
timestamp = datetime.utcnow() - epoch
timestamp_sec = timestamp.days * 24 * 60 * 60 + timestamp.seconds
timestamp_usec = timestamp.microseconds
if options.rssi:
pkt = pkt[:-2] + chr(127) + chr(0x80)
sys.stderr.write(
"WARNING: failed to display RSSI, please update the NCP version\n"
)
pkt = pcap.encode_frame(pkt, timestamp_sec, timestamp_usec)
if options.hex:
pkt = util.hexify_str(pkt) + "\n"
sys.stdout.write(pkt)
sys.stdout.flush()
except KeyboardInterrupt:
pass
if wpan_api:
wpan_api.stream.close()
def main():
""" Top-level main for sniffer host-side tool. """
(options, remaining_args) = parse_args()
if options.debug:
CONFIG.debug_set_level(options.debug)
if options.use_host_timestamp:
print('WARNING: Using host timestamp, may be inaccurate',
file=sys.stderr)
# Set default stream to pipe
stream_type = 'p'
stream_descriptor = "../../examples/apps/ncp/ot-ncp-ftd " + options.nodeid
if options.uart:
stream_type = 'u'
stream_descriptor = options.uart
elif options.socket:
stream_type = 's'
stream_descriptor = options.socket
elif options.pipe:
stream_type = 'p'
stream_descriptor = options.pipe
if options.nodeid:
stream_descriptor += " " + str(options.nodeid)
else:
if len(remaining_args) > 0:
stream_descriptor = " ".join(remaining_args)
stream = StreamOpen(stream_type, stream_descriptor, False,
options.baudrate, options.rtscts)
if stream is None:
exit()
wpan_api = WpanApi(stream, options.nodeid)
result = sniffer_init(wpan_api, options)
if not result:
sys.stderr.write("ERROR: failed to initialize sniffer\n")
exit()
else:
sys.stderr.write("SUCCESS: sniffer initialized\nSniffing...\n")
pcap = PcapCodec()
hdr = pcap.encode_header(
DLT_IEEE802_15_4_TAP if options.tap else DLT_IEEE802_15_4_WITHFCS)
if options.hex:
hdr = util.hexify_str(hdr) + "\n"
if options.output:
output = open(options.output, 'wb')
elif hasattr(sys.stdout, 'buffer'):
output = sys.stdout.buffer
else:
output = sys.stdout
output.write(hdr)
output.flush()
if options.is_fifo:
threading.Thread(target=check_fifo, args=(output, )).start()
epoch = datetime(1970, 1, 1)
timebase = datetime.utcnow() - epoch
timebase_sec = timebase.days * 24 * 60 * 60 + timebase.seconds
timebase_usec = timebase.microseconds
try:
tid = SPINEL.HEADER_ASYNC
prop_id = SPINEL.PROP_STREAM_RAW
while True:
result = wpan_api.queue_wait_for_prop(prop_id, tid)
if result and result.prop == prop_id:
length = wpan_api.parse_S(result.value)
pkt = result.value[2:2 + length]
# metadata format (totally 19 bytes):
# 0. RSSI(int8)
# 1. Noise Floor(int8)
# 2. Flags(uint16)
# 3. PHY-specific data struct contains:
# 3.0 Channel(uint8)
# 3.1 LQI(uint8)
# 3.2 Timestamp in microseconds(uint64)
# 4. Vendor data struct contains:
# 4.0 Receive error(uint8)
if len(result.value) == 2 + length + 19:
metadata = wpan_api.parse_fields(
result.value[2 + length:2 + length + 19],
"ccSt(CCX)t(i)")
timestamp = metadata[3][2]
timestamp_sec = timestamp / 1000000
timestamp_usec = timestamp % 1000000
# (deprecated) metadata format (totally 17 bytes):
# 0. RSSI(int8)
# 1. Noise Floor(int8)
# 2. Flags(uint16)
# 3. PHY-specific data struct contains:
# 3.0 Channel(uint8)
# 3.1 LQI(uint8)
# 3.2 Timestamp Msec(uint32)
# 3.3 Timestamp Usec(uint16)
# 4. Vendor data struct contains:
# 4.0 Receive error(uint8)
elif len(result.value) == 2 + length + 17:
metadata = wpan_api.parse_fields(
result.value[2 + length:2 + length + 17],
"ccSt(CCLS)t(i)")
timestamp_usec = timebase_usec + metadata[3][
2] * 1000 + metadata[3][3]
timestamp_sec = timebase_sec + timestamp_usec / 1000000
timestamp_usec = timestamp_usec % 1000000
# Some old version NCP doesn't contain timestamp information in metadata
else:
timestamp = datetime.utcnow() - epoch
timestamp_sec = timestamp.days * 24 * 60 * 60 + timestamp.seconds
timestamp_usec = timestamp.microseconds
if options.rssi:
sys.stderr.write(
"WARNING: failed to display RSSI, please update the NCP version\n"
)
if options.use_host_timestamp:
timestamp = round(time.time() * 1000000)
timestamp_sec = timestamp // 1000000
timestamp_usec = timestamp % 1000000
pkt = pcap.encode_frame(pkt, int(timestamp_sec),
timestamp_usec, options.rssi,
options.crc, metadata)
if options.hex:
pkt = util.hexify_str(pkt) + "\n"
output.write(pkt)
output.flush()
except KeyboardInterrupt:
pass
if wpan_api:
wpan_api.stream.close()
output.close()
def main():
parser = argparse.ArgumentParser()
parser.add_argument('rcp', type=str, help='path to rcp executable')
args = parser.parse_args()
stream = StreamOpen('p', f'{args.rcp} 1', False, 115200, False)
wpan_api = WpanApi(stream, 1)
assert wpan_api.prop_set_value(SPINEL.PROP_PHY_ENABLED, 1) == 1
ext_addr = b'\x00\x11\x22\x33\x44\x55\x66\x77'
assert wpan_api.prop_set_value(SPINEL.PROP_PHY_CHAN, 17) == 17
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_15_4_SADDR, 0x1234,
'H') == 0x1234
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_15_4_LADDR, ext_addr,
'8s') == ext_addr
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_SRC_MATCH_ENABLED, 1) == 1
while wpan_api.prop_insert_value(
SPINEL.PROP_MAC_SRC_MATCH_EXTENDED_ADDRESSES, ext_addr,
'8s') == ext_addr:
ext_addr = (int.from_bytes(ext_addr, 'little') + 1).to_bytes(
8, 'little')
short_addr = 0x2345
while wpan_api.prop_insert_value(SPINEL.PROP_MAC_SRC_MATCH_SHORT_ADDRESSES,
short_addr, 'H') == short_addr:
short_addr += 1
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_FILTER_MODE,
SPINEL.MAC_FILTER_MODE_PROMISCUOUS) in {
SPINEL.MAC_FILTER_MODE_PROMISCUOUS,
SPINEL.MAC_FILTER_MODE_MONITOR,
}
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_RAW_STREAM_ENABLED, 1) == 1
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_SCAN_MASK, 11) == [11]
assert wpan_api.prop_set_value(
SPINEL.PROP_MAC_SCAN_STATE,
SPINEL.SCAN_STATE_ENERGY) == SPINEL.SCAN_STATE_ENERGY
wpan_api.cmd_send(SPINEL.CMD_RESET)
assert wpan_api.prop_get_value(SPINEL.PROP_PHY_ENABLED) == 0
assert wpan_api.prop_set_value(SPINEL.PROP_PHY_ENABLED, 1) == 1
assert wpan_api.prop_get_value(SPINEL.PROP_PHY_CHAN) == 11
assert wpan_api.prop_get_value(SPINEL.PROP_MAC_15_4_SADDR) == 0xfffe
assert wpan_api.prop_get_value(SPINEL.PROP_MAC_15_4_LADDR) == b'\x00' * 8
assert wpan_api.prop_get_value(SPINEL.PROP_MAC_SRC_MATCH_ENABLED) == 0
assert wpan_api.prop_set_value(SPINEL.PROP_MAC_SRC_MATCH_ENABLED, 1) == 1
assert wpan_api.prop_insert_value(
SPINEL.PROP_MAC_SRC_MATCH_EXTENDED_ADDRESSES, ext_addr,
'8s') == ext_addr
assert wpan_api.prop_insert_value(
SPINEL.PROP_MAC_SRC_MATCH_SHORT_ADDRESSES, short_addr,
'H') == short_addr
assert wpan_api.prop_get_value(
SPINEL.PROP_MAC_FILTER_MODE) == SPINEL.MAC_FILTER_MDOE_NORMAL
assert wpan_api.prop_get_value(SPINEL.PROP_MAC_RAW_STREAM_ENABLED) == 0
assert wpan_api.prop_get_value(
SPINEL.PROP_MAC_SCAN_STATE) == SPINEL.SCAN_STATE_IDLE