Scapy模块: netif = rt[4 + mtu_present + prio_present + refs_present + locked] IndexError:列表索引超出范围

Question

我正在尝试从替罪羊模块创建一个嗅探器。我在macOS Catalina上运行Python3.7。假设它是macOS Catalina的公共测试版。如果是这样，我只想知道是什么导致了这个问题。我在努力理解为什么scapy会抛出一个超出跟踪范围的索引：

main.py

import scapy.all as scapy

p = scapy.sniff()

p.summary()

结果：

Traceback (most recent call last):
  File "/Users/tom/PycharmProjects/sniffer/main.py", line 2, in <module>
    import scapy.all as scapy
  File "/Users/tom/PycharmProjects/sniffer/venv/lib/python3.7/site-packages/scapy/sendrecv.py", line 33, in <module>
    import scapy.route  # noqa: F401
  File "/Users/tom/PycharmProjects/sniffer/venv/lib/python3.7/site-packages/scapy/route.py", line 194, in <module>
    conf.route = Route()
  File "/Users/tom/PycharmProjects/sniffer/venv/lib/python3.7/site-packages/scapy/route.py", line 27, in __init__
    self.resync()
  File "/Users/tom/PycharmProjects/sniffer/venv/lib/python3.7/site-packages/scapy/route.py", line 35, in resync
    self.routes = read_routes()
  File "/Users/tom/PycharmProjects/sniffer/venv/lib/python3.7/site-packages/scapy/arch/unix.py", line 82, in read_routes
    netif = rt[4 + mtu_present + prio_present + refs_present + locked]
IndexError: list index out of range

Answer 1

这似乎是一个bug。请检查现在应该修复的https://github.com/secdev/scapy/issues/2139 :-)