You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.6 KiB
80 lines
2.6 KiB
#!/usr/bin/env python
|
|
# Copyright (c) PLUMgrid, Inc.
|
|
# Licensed under the Apache License, Version 2.0 (the "License")
|
|
|
|
# test program to count the packets sent to a device in a .5
|
|
# second period
|
|
|
|
from ctypes import c_uint, c_ulong, Structure
|
|
from netaddr import IPAddress
|
|
from bcc import BPF
|
|
from subprocess import check_call
|
|
import sys
|
|
from unittest import main, TestCase
|
|
|
|
arg1 = sys.argv.pop(1)
|
|
arg2 = ""
|
|
if len(sys.argv) > 1:
|
|
arg2 = sys.argv.pop(1)
|
|
|
|
Key = None
|
|
Leaf = None
|
|
if arg1.endswith(".b"):
|
|
class Key(Structure):
|
|
_fields_ = [("dip", c_uint),
|
|
("sip", c_uint)]
|
|
class Leaf(Structure):
|
|
_fields_ = [("rx_pkts", c_ulong),
|
|
("tx_pkts", c_ulong)]
|
|
|
|
class TestBPFSocket(TestCase):
|
|
def setUp(self):
|
|
b = BPF(arg1, arg2, debug=0)
|
|
fn = b.load_func("on_packet", BPF.SOCKET_FILTER)
|
|
BPF.attach_raw_socket(fn, "eth0")
|
|
self.stats = b.get_table("stats", Key, Leaf)
|
|
|
|
def test_ping(self):
|
|
cmd = ["ping", "-f", "-c", "100", "172.16.1.1"]
|
|
check_call(cmd)
|
|
#for key, leaf in self.stats.items():
|
|
# print(IPAddress(key.sip), "=>", IPAddress(key.dip),
|
|
# "rx", leaf.rx_pkts, "tx", leaf.tx_pkts)
|
|
key = self.stats.Key(IPAddress("172.16.1.2").value, IPAddress("172.16.1.1").value)
|
|
leaf = self.stats[key]
|
|
self.assertEqual(leaf.rx_pkts, 100)
|
|
self.assertEqual(leaf.tx_pkts, 100)
|
|
del self.stats[key]
|
|
with self.assertRaises(KeyError):
|
|
x = self.stats[key]
|
|
with self.assertRaises(KeyError):
|
|
del self.stats[key]
|
|
self.stats.clear()
|
|
self.assertEqual(len(self.stats), 0)
|
|
self.stats[key] = leaf
|
|
self.assertEqual(len(self.stats), 1)
|
|
self.stats.clear()
|
|
self.assertEqual(len(self.stats), 0)
|
|
|
|
def test_empty_key(self):
|
|
# test with a 0 key
|
|
self.stats.clear()
|
|
self.stats[self.stats.Key()] = self.stats.Leaf(100, 200)
|
|
x = self.stats.popitem()
|
|
self.stats[self.stats.Key(10, 20)] = self.stats.Leaf(300, 400)
|
|
with self.assertRaises(KeyError):
|
|
x = self.stats[self.stats.Key()]
|
|
(_, x) = self.stats.popitem()
|
|
self.assertEqual(x.rx_pkts, 300)
|
|
self.assertEqual(x.tx_pkts, 400)
|
|
self.stats.clear()
|
|
self.assertEqual(len(self.stats), 0)
|
|
self.stats[self.stats.Key()] = x
|
|
self.stats[self.stats.Key(0, 1)] = x
|
|
self.stats[self.stats.Key(0, 2)] = x
|
|
self.stats[self.stats.Key(0, 3)] = x
|
|
self.assertEqual(len(self.stats), 4)
|
|
|
|
if __name__ == "__main__":
|
|
main()
|