145     data = f.read(4)
146     if len(data) < 4:
148     return struct.unpack('>I', data)[0]
150 def as_hex(data):  argument
151     return ''.join(["{0:02x} ".format(byte) for byte in data])
156 def read_net_16(data):  argument
157     return struct.unpack('>H', data)[0]
159 def read_net_24(data):  argument
160     return data[0] << 16 | struct.unpack('>H', data[1:3])[0]
162 def read_net_32(data):  argument
163     return struct.unpack('>I', data)[0]
183     print (spaces + '|           data: ' + as_hex(pdu.data))
219         self.data = pdu_data
231         self.ivi = (self.data[1] & 0x80) >> 7
232         self.nid = self.data[0] & 0x7f
233         self.ctl = (self.data[1] & 0x80) == 0x80
234         self.ttl = self.data[1] & 0x7f
235         self.seq = read_net_24(self.data[2:5])
236         self.src = read_net_16(self.data[5:7])
237         self.dst = read_net_16(self.data[7:9])
238         self.lower_transport = self.data[9:]
265         self.seg = (self.data[0] & 0x80) == 0x80
269             self.opcode = self.data[0] & 0x7f
272             self.aid = self.data[0] & 0x3f 
274             self.akf = self.data[0] & 0x40 == 0x040
278                 self.szmic = self.data[1] & 0x80 == 0x80
280             temp_12 = struct.unpack('>H', self.data[1:3])[0]
283             temp_23 = struct.unpack('>H', self.data[2:4])[0]
288             self.segment = self.data[4:]
292             self.upper_transport = self.data[1:]
315         self.data = b''
336         if len(self.data) == 0 and self.complete():
343         self.data = bytearray(self.len)
350             self.data[pos:pos+len(pdu.segment)] = pdu.segment
357     def __init__(self, lower_pdu, data):  argument
364         self.data      = data
373         upper_bits = data[0] >> 6
375             self.opcode = data[0]
378             self.opcode = read_net_16(data[0:2])
381             self.opcode = read_net_24(data[0:3])
384         self.params = data[self.opcode_len:]
449 def mesh_upper_transport_decrypt(message, data):  argument
454     ciphertext = data[:-trans_mic_len]
455     trans_mic  = data[-trans_mic_len:]
472     control_pdu.opcode = control_pdu.data[0]
474     control_pdu.obo = (control_pdu.data[1] & 0x80) >> 7
476     temp_12 = read_net_16(control_pdu.data[1:3])
479     control_pdu.block_ack = read_net_32(control_pdu.data[3:7])
499     nid = network_pdu_encrypted.data[0] & 0x7f
501 …network_pdu_decrypted_data = network_decrypt(network_pdu_encrypted.data, as_big_endian32(ivi), key…
536             access_payload = mesh_upper_transport_decrypt(message, message.data)
549             control = layer_pdu('Unsegmented Control', lower_transport.data)
577     ad_len  = adv_pdu.data[0] - 1
578     ad_type = adv_pdu.data[1]