我想在Python中实现基于ICMP的Traceroute。我发现了一个非常有用的指南(https://blogs.oracle.com/ksplice/entry/learning_by_doing_writing_your),它允许我创建基于UDP的Traceroute,因此只需要修改即可。不过,我环顾四周,无法更改发送套接字并使其工作。有人能帮助我吗?在Python中创建ICMP跟踪路由
#!/usr/bin/python
import socket
def main(dest_name):
dest_addr = socket.gethostbyname(dest_name)
port = 33434
max_hops = 30
icmp = socket.getprotobyname('icmp')
udp = socket.getprotobyname('udp')
ttl = 1
while True:
recv_socket = socket.socket(socket.AF_INET, socket.SOCK_RAW, icmp)
send_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, udp)
send_socket.setsockopt(socket.SOL_IP, socket.IP_TTL, ttl)
recv_socket.bind(("", port))
send_socket.sendto("", (dest_name, port))
curr_addr = None
curr_name = None
try:
_, curr_addr = recv_socket.recvfrom(512)
curr_addr = curr_addr[0]
try:
curr_name = socket.gethostbyaddr(curr_addr)[0]
except socket.error:
curr_name = curr_addr
except socket.error:
pass
finally:
send_socket.close()
recv_socket.close()
if curr_addr is not None:
curr_host = "%s (%s)" % (curr_name, curr_addr)
else:
curr_host = "*"
print "%d\t%s" % (ttl, curr_host)
ttl += 1
if curr_addr == dest_addr or ttl > max_hops:
break
if __name__ == "__main__":
main('google.com')
它是**接收**套接字,如果您不以root身份运行,会导致“操作不允许”。 – 2012-04-04 09:18:18
哪个平台在运行?其实你提到的文章提到'因为原始套接字需要root权限,所以traceroute通常是setuid。对于我们的目的,我们可以以root身份运行脚本:'。但是,它看起来像在RHEL5上,'traceroute'不是setuid root(参见http://traceroute.sourceforge.net/) – 2012-04-04 09:29:33
是在Ubuntu上运行并以root身份运行,没有运行问题的问题是在运行时使用语法 – Jamesla 2012-04-04 11:31:53