btstack/tool/dump_pklg.py
2022-01-15 12:48:30 +01:00

63 lines
1.4 KiB
Python
Executable File

#!/usr/bin/env python3
# BlueKitchen GmbH (c) 2014
# primitive dump for PacketLogger format
# APPLE PacketLogger
# typedef struct {
# uint32_t len;
# uint32_t ts_sec;
# uint32_t ts_usec;
# uint8_t type; // 0xfc for note
# }
import sys
import datetime
import struct
packet_types = [ "CMD =>", "EVT <=", "ACL =>", "ACL <="]
def read_header(f):
bytes_read = f.read(13)
if bytes_read:
return struct.unpack(">IIIB", bytes_read)
else:
return (-1, 0, 0, 0)
def as_hex(data):
str_list = []
for byte in data:
str_list.append("{0:02x} ".format(byte))
return ''.join(str_list)
if len(sys.argv) == 1:
print ('Dump PacketLogger file')
print ('Copyright 2014, BlueKitchen GmbH')
print ('')
print ('Usage: ', sys.argv[0], 'hci_dump.pklg')
exit(0)
infile = sys.argv[1]
with open (infile, 'rb') as fin:
pos = 0
try:
while True:
(len, ts_sec, ts_usec, type) = read_header(fin)
if len < 0:
break
packet_len = len - 9;
if (packet_len > 66000):
print ("Error parsing pklg at offset %u (%x)." % (pos, pos))
break
packet = fin.read(packet_len)
pos = pos + 4 + len
time = "[%s.%03u]" % (datetime.datetime.fromtimestamp(ts_sec).strftime("%Y-%m-%d %H:%M:%S"), ts_usec / 1000)
if type == 0xfc:
print (time, "LOG", packet.decode('ascii'))
continue
if type <= 0x03:
print (time, packet_types[type], as_hex(packet))
except TypeError:
print ("Error parsing pklg at offset %u (%x)." % (pos, pos))