[英]Python scan for network IP addresses and macs
ip輸出 屏幕截圖我正在嘗試創建一個腳本,該腳本掃描LAN並使用Python獲取所有計算機的ip地址和mac地址。 下面的腳本是這樣做的,但是它會兩次打印列表? 如何實現此目標,或者如何更改下面的腳本以一次打印列表(作為字典,其中ip地址是鍵,而mac是值)?
from __future__ import absolute_import, division, print_function
import logging
import scapy.config
import scapy.layers.l2
import scapy.route
import socket
import math
import errno
logging.basicConfig(format='%(asctime)s %(levelname)-5s %(message)s', datefmt='%Y-%m-%d %H:%M:%S', level=logging.DEBUG)
logger = logging.getLogger(__name__)
def long2net(arg):
if (arg <= 0 or arg >= 0xFFFFFFFF):
raise ValueError("illegal netmask value", hex(arg))
return 32 - int(round(math.log(0xFFFFFFFF - arg, 2)))
def to_CIDR_notation(bytes_network, bytes_netmask):
network = scapy.utils.ltoa(bytes_network)
netmask = long2net(bytes_netmask)
net = "%s/%s" % (network, netmask)
if netmask < 16:
logger.warn("%s is too big. skipping" % net)
return None
return net
def scan_and_print_neighbors(net, interface, timeout=1):
logger.info("arping %s on %s" % (net, interface))
try:
ans, unans = scapy.layers.l2.arping(net, iface=interface, timeout=timeout, verbose=True)
for s, r in ans.res:
line = r.sprintf("%Ether.src% %ARP.psrc%")
try:
hostname = socket.gethostbyaddr(r.psrc)
line += " " + hostname[0]
except socket.herror:
# failed to resolve
pass
logger.info(line)
except socket.error as e:
if e.errno == errno.EPERM: # Operation not permitted
logger.error("%s. Did you run as root?", e.strerror)
else:
raise
if __name__ == "__main__":
for network, netmask, _, interface, address in scapy.config.conf.route.routes:
# skip loopback network and default gw
if network == 0 or interface == 'lo' or address == '127.0.0.1' or address == '0.0.0.0':
continue
if netmask <= 0 or netmask == 0xFFFFFFFF:
continue
net = to_CIDR_notation(network, netmask)
if interface != scapy.config.conf.iface:
# see http://trac.secdev.org/scapy/ticket/537
logger.warn("skipping %s because scapy currently doesn't support arping on non-primary network interfaces", net)
continue
if net:
scan_and_print_neighbors(net, interface)
您是否嘗試將verbose
設置為False
?
ans, unans = scapy.layers.l2.arping(net, iface=interface, timeout=timeout, verbose=False)
除了在scapy.layers.l2.arping(
設置verbose=False
, scapy.layers.l2.arping(
導入conf
模塊:
from scapy.all import conf
然后在if __name__ == "__main__":
下方添加conf.verb=0
:
if __name__ == "__main__":
conf.verb=0
for network, netmask, _, interface, address in scapy.config.conf.route.routes:
# skip loopback network and default gw
if network == 0 or interface == 'lo' or address == '127.0.0.1' or address == '0.0.0.0':
continue
編輯:我認為您的腳本為/proc/net/route
中定義的尚未明確過濾掉的每個“路由”循環一次(即, continue
命令上方的行)。我的猜測是,如果您要執行route -n
您可能會在其中找到2條路由,它們以某種方式具有相同的Network和Interface值,但其他區別如Netmask或Gateway。
無論如何,獲得通過的黑客方式是在調用scan_and_print_neighbors(net, interface)
以退出for循環后添加一個break
。
例如:
if __name__ == "__main__":
for network, netmask, _, interface, address in scapy.config.conf.route.routes:
# skip loopback network and default gw
if network == 0 or interface == 'lo' or address == '127.0.0.1' or address == '0.0.0.0':
continue
if netmask <= 0 or netmask == 0xFFFFFFFF:
continue
net = to_CIDR_notation(network, netmask)
if interface != scapy.config.conf.iface:
# see http://trac.secdev.org/scapy/ticket/537
logger.warn("skipping %s because scapy currently doesn't support arping on non-primary network interfaces", net)
continue
if net:
scan_and_print_neighbors(net, interface)
break
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