bettercap/network/make_manuf.py

62 lines
1.5 KiB
Python
Executable file

#!/usr/bin/python
import os
import six
import re
base = os.path.dirname(os.path.realpath(__file__))
# "https://code.wireshark.org/review/gitweb?p=wireshark.git;a=blob_plain;f=manuf;hb=HEAD"
with open(os.path.join(base, 'manuf.go.template')) as fp:
template = fp.read()
with open(os.path.join(base, 'manuf')) as fp:
lines = [l.strip() for l in fp.readlines()]
lines = [l for l in lines if l != "" and l[0] != '#']
def get_mac_and_mask(mac):
# simple case
if not "/" in mac:
mac_hex = mac.replace(":", '')
mask = 48 - 4 * len(mac_hex)
mac_int = int(mac_hex, 16) << mask
# 00:1B:C5:00:00:00/36
else:
parts = mac.split("/")
mac_hex = parts[0].replace(":", '')
mask = 48 - int(parts[1])
mac_int = int(mac_hex, 16) << mask
return (mac_int, mask)
index = {}
for line in lines:
m = re.match( r'^([^\s]+)\s+([^\s]+)(.*)$', line, re.M)
parts = m.groups()
mac = parts[0]
short = parts[1]
manuf = parts[2].strip()
if manuf == "":
manuf = short
m = re.match( r'^([^#]+)#.+$', manuf)
if m is not None:
manuf = m.groups()[0].strip()
mac_int, mask = get_mac_and_mask(mac)
key = "%d.%d" % ( mask, mac_int >> mask )
index[key] = manuf
code = "map[string]string {\n"
for key, vendor in six.iteritems(index):
code += " \"%s\": \"%s\",\n" % ( key, vendor.replace( '"', '\\"' ))
code += "}\n"
code = template.replace('#MAP#', code)
with open(os.path.join(base, 'manuf.go'), 'w+t') as fp:
fp.write(code)