下面是我尝试作为第一个Python项目构建的NetworkScanner的代码。#!/ usr / bin / env python
import scapy.all as scapy
import optparse
def scan(ip):
packet1 = scapy.ARP(pdst=ip)
etherpacket = scapy.Ether(dst='ff:ff:ff:ff:ff:ff')
broadcast_packet = etherpacket / packet1
ans = scapy.srp(broadcast_packet, timeout=60, verbose=False)[0]
ret_list = list()
for item in ans:
dic = {}
dic['ip'] = item[1].pdst
dic['mac'] = item[1].hwdst
ret_list.append(dic)
print(ret_list)
return ret_list
def printfun(returnlist):
print("IP\t\t\tMAC Address\n----------------------------------------------")
for elem in returnlist:
print(elem["ip"] + "\t\t" + elem["mac"])
def getip():
parser = optparse.OptionParser()
parser.add_option('-i', "--ip", dest = 'received_ip', help="Please enter the ip you want to scan")
(option, arguments) = parser.parse_args()
return option.received_ip
ip = getip()
if ip:
result = scan(ip)
printfun(result)
else:
print("no ip given")
现在,我确实遵循了一些教程,并学会了并行构建,这对我来说似乎是正确的,但我并不擅长。但是当我执行该程序时,它仅扫描执行该程序的虚拟主机本身的IP。
/PycharmProjects/Networkscanner$ sudo python networkscanner.py -i 192.168.1.1/24
[{'ip': '192.168.1.205', 'mac': '08:00:27:1f:30:76'}, {'ip': '192.168.1.205', 'mac': '08:00:27:1f:30:76'}]
IP MAC Address
----------------------------------------------
192.168.1.205 08:00:27:1f:30:76
192.168.1.205 08:00:27:1f:30:76
当我使用python的内置网络扫描仪时,会给出这些结果。
Currently scanning: Finished! | Screen View: Unique Hosts
5 Captured ARP Req/Rep packets, from 4 hosts. Total size: 300
_____________________________________________________________________________
IP At MAC Address Count Len MAC Vendor / Hostname
-----------------------------------------------------------------------------
192.168.1.1 a0:47:d7:36:2a:c0 2 120 Best IT World (India) Pvt Lt
192.168.1.203 e4:42:a6:30:93:64 1 60 Intel Corporate
192.168.1.205 30:b5:c2:10:05:3b 1 60 TP-LINK TECHNOLOGIES CO.,LTD
192.168.1.207 30:b5:c2:10:05:3b 1 60 TP-LINK TECHNOLOGIES CO.,LTD
编辑:我尝试了“监视”模式,但这无济于事。我也尝试在主窗口上使用外部WiFi适配器运行它,仍然是同样的问题
有人可以协助解决我的代码中的错误吗?
如果我们更恰当地命名变量,显然问题出在哪里:
for sent_recv in ans:
dic = {}
return_packet = sent_recv[1]
dic['ip'] = return_packet.pdst
dic['mac'] = return_packet.hwdst
ret_list.append(dic)
item
是已发送数据包和已接收数据包的元组。如此命名可以帮助识别它。sent_recv
的第二个元素是返回的数据包。让我们这样命名。因此,如果将其更改为返回数据包的src IP / MAC,我们将获得以下信息:
for sent_recv in ans:
dic = {}
return_packet = sent_recv[1]
# Difference is dst => src here
dic['ip'] = return_packet.psrc
dic['mac'] = return_packet.hwsrc
ret_list.append(dic)
注:ARP数据包不应该花60秒钟返回-根据网络大小,它的范围更多为10到100毫秒。这里的2s超时更为合适。
使用修改后的代码运行此代码,我们将获得所需的结果:
$ python script.py -i "192.168.1.0/24"
[{'ip': '192.168.1.48', 'mac': '00:1b:78:20:ee:40'},
{'ip': '192.168.1.67', 'mac': '6c:33:a9:42:6a:18'},
...
IP MAC Address
----------------------------------------------
192.168.1.48 00:1b:78:20:ee:40
192.168.1.67 6c:33:a9:42:6a:18
...