使用python綁定/連接到網絡接口卡

Question

我正在嘗試連接/綁定到特定的網絡接口卡（NIC）或無線網絡接口。 例如，當我創建套接字時，我想使用網絡名稱（例如'wlan0'或'eth0'）進行連接，而不是使用IP地址。 在JAVA中，我可以使用以下代碼輕松完成此操作：

//Initializing command socket

//String networkCard = "wlan0"; //or could be "eth0", etc.

NetworkInterface nif = NetworkInterface.getByName(networkCard);

Enumeration<InetAddress> nifAddresses = nif.getInetAddresses();

// IP address of robot connected to NIC       
SocketAddress sockaddr = new InetSocketAddress("192.168.1.100", 80);

sock = new Socket();

// bind to the specific NIC card which is connected to a specific robot

sock.bind(new InetSocketAddress(nifAddresses.nextElement(), 0));

sock.connect(sockaddr,10000);

我想把它翻譯成Python，但我很難過。 有關如何做到這一點的任何建議？

我正在使用sockopt和AF_CAN，但沒有任何工作。

非常感謝你！！！

Answer 1

實際上答案很簡單。 它類似於Idx在之前的回答中所做的：

def findConnectedRobot():

'''
Finds which robots are connected to the computer and returns the
addresses of the NIC they are connected to
'''
robot_address = []  # stores NIC address
import netifaces
# get the list of availble NIC's
for card in netifaces.interfaces():
    try:
        # get all NIC addresses
        temp = netifaces.ifaddresses(\
                card)[netifaces.AF_INET][0]['addr']
        temp2 = temp.split('.')
        # see if address matches common address given to NIC when
        # NIC is connected to a robot
        if temp2[0] == '192' and int(temp2[3]) < 30:
            print('appending address: ' + temp)
            robot_address.append(temp)
    except BaseException:
        pass
return robot_address

在我得到“機器人地址”后，我可以像普通插座一樣綁定/連接它們。

謝謝您的幫助！

Answer 2

你需要libnl及其python綁定：

#!/usr/bin/env python

import netlink.core as netlink
import netlink.route.link as link
import netlink.route.address as Address

sock = netlink.Socket()
sock.connect(netlink.NETLINK_ROUTE)

cache = link.LinkCache()
cache.refill(sock)
intf = cache['wlan0']

addr_cache = Address.AddressCache()
addr_cache.refill()

for addr in addr_cache:
    if addr.ifindex == intf.ifindex:
        print addr