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ネットワークのすべてのアドレスを列挙する

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#ネットワークのすべてのアドレスを列挙する。

自宅内のIoT機器をメンテナンスするのにarp -a コマンドだけでは、足りない。Windows 10とRaspberry Piで動作するスクリプトを作成した。

準備

sudo pip install kamene #python3 で動作するscapy

kamene (formerly known as "scapy for python3" or scapy3k)

discover.py
# -*- coding: utf-8 -*-
import logging,requests
logging.getLogger("kamene.runtime").setLevel(logging.ERROR)
from kamene.all import *
import netifaces
from netifaces import interfaces, ifaddresses, AF_INET
_ip=lambda ip:(int(ip.split(".")[0]),int(ip.split(".")[1]),int(ip.split(".")[2]),int(ip.split(".")[3]) )
'''
ネットワークに接続されている機器のアドレスの取得
'''
def discover():
    s,ip = ip_addr()
    n=[(x[1][ARP].psrc,x[1][ARP].hwsrc) for x in arping(ip, timeout=1, verbose=0)[0]]
    return '.'.join(map(str,s)),ip,(sorted(n,key=lambda ip:(int(ip[0].split(".")[0]),int(ip[0].split(".")[1]),int(ip[0].split(".")[2]),int(ip[0].split(".")[3]) )))
'''
ネットワークアドレスの取得
'''
def ip_addr():
    nx=[netifaces.ifaddresses(iface)[netifaces.AF_INET][0]['addr'] for iface in netifaces.interfaces() if netifaces.AF_INET in netifaces.ifaddresses(iface)]
    nxx=nx[0] if nx[0]!="127.0.0.1" else nx[1]
    n=_ip(nxx)
    mask='.'.join(map(str,n[:3]))+".*" #ネットワーク検索用 マスク 例 192.168.1.*
    return n,mask
'''
Mac address to company
'''
def MacInfo(mac):
    r = requests.get('http://macvendors.co/api/%s'% mac)
    return  (r.json()['result'])['company']

if __name__ == '__main__':
    ip,mask,adresses=discover()
    print("My IP:%s"%ip)
    print("Mask :%s"%mask)
    for i,x in enumerate(adresses):
        print("%3s %-15s %-18s %s"%(i,x[0],x[1],MacInfo(x[1])))

結果

pi@raspberrypi:~/tools$ sudo python discover.py
My IP:192.168.1.10
Mask :192.168.1.*
  0 192.168.1.1     58:52:8a:3f:8a:21  Mitsubishi Electric Corporation
  1 192.168.1.90    b0:e8:92:10:3c:f6  SEIKO EPSON CORPORATION
  2 192.168.1.104   e4:e4:ab:58:7e:36  Apple, Inc.
  3 192.168.1.108   b8:27:eb:97:47:1a  Raspberry Pi Foundation
  4 192.168.1.111   b8:27:eb:97:47:1a  Raspberry Pi Foundation
  5 192.168.1.151   78:0f:77:17:5d:70  HangZhou Gubei Electronics Technology Co.,Ltd
  6 192.168.1.155   84:0d:8e:a7:d8:3a  Espressif Inc.
  7 192.168.1.158   b4:e6:2d:67:92:c2  Espressif Inc.
  8 192.168.1.199   00:04:13:21:11:fd  SNOM Technology AG
pi@raspberrypi:~/tools$ 
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