180 lines
5.0 KiB
Python
180 lines
5.0 KiB
Python
# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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import unittest
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import logging
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import struct
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from struct import *
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from nose.tools import *
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from nose.plugins.skip import Skip, SkipTest
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from ryu.ofproto import ether
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from ryu.lib.packet.ethernet import ethernet
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from ryu.lib.packet.packet import Packet
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from ryu.lib.packet.arp import arp
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from ryu.lib.packet.vlan import vlan
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from ryu.lib import addrconv
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LOG = logging.getLogger('test_arp')
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class Test_arp(unittest.TestCase):
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""" Test case for arp
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"""
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hwtype = 1
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proto = 0x0800
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hlen = 6
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plen = 4
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opcode = 1
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src_mac = '00:07:0d:af:f4:54'
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src_ip = '24.166.172.1'
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dst_mac = '00:00:00:00:00:00'
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dst_ip = '24.166.173.159'
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fmt = arp._PACK_STR
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buf = pack(fmt, hwtype, proto, hlen, plen, opcode,
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addrconv.mac.text_to_bin(src_mac),
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addrconv.ipv4.text_to_bin(src_ip),
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addrconv.mac.text_to_bin(dst_mac),
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addrconv.ipv4.text_to_bin(dst_ip))
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a = arp(hwtype, proto, hlen, plen, opcode, src_mac, src_ip, dst_mac,
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dst_ip)
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def setUp(self):
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pass
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def tearDown(self):
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pass
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def find_protocol(self, pkt, name):
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for p in pkt.protocols:
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if p.protocol_name == name:
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return p
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def test_init(self):
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eq_(self.hwtype, self.a.hwtype)
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eq_(self.proto, self.a.proto)
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eq_(self.hlen, self.a.hlen)
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eq_(self.plen, self.a.plen)
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eq_(self.opcode, self.a.opcode)
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eq_(self.src_mac, self.a.src_mac)
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eq_(self.src_ip, self.a.src_ip)
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eq_(self.dst_mac, self.a.dst_mac)
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eq_(self.dst_ip, self.a.dst_ip)
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def test_parser(self):
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_res = self.a.parser(self.buf)
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if type(_res) is tuple:
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res = _res[0]
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else:
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res = _res
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eq_(res.hwtype, self.hwtype)
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eq_(res.proto, self.proto)
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eq_(res.hlen, self.hlen)
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eq_(res.plen, self.plen)
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eq_(res.opcode, self.opcode)
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eq_(res.src_mac, self.src_mac)
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eq_(res.src_ip, self.src_ip)
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eq_(res.dst_mac, self.dst_mac)
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eq_(res.dst_ip, self.dst_ip)
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def test_serialize(self):
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data = bytearray()
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prev = None
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buf = self.a.serialize(data, prev)
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fmt = arp._PACK_STR
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res = struct.unpack(fmt, buf)
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eq_(res[0], self.hwtype)
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eq_(res[1], self.proto)
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eq_(res[2], self.hlen)
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eq_(res[3], self.plen)
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eq_(res[4], self.opcode)
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eq_(res[5], addrconv.mac.text_to_bin(self.src_mac))
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eq_(res[6], addrconv.ipv4.text_to_bin(self.src_ip))
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eq_(res[7], addrconv.mac.text_to_bin(self.dst_mac))
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eq_(res[8], addrconv.ipv4.text_to_bin(self.dst_ip))
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def _build_arp(self, vlan_enabled):
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if vlan_enabled is True:
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ethertype = ether.ETH_TYPE_8021Q
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v = vlan(1, 1, 3, ether.ETH_TYPE_ARP)
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else:
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ethertype = ether.ETH_TYPE_ARP
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e = ethernet(self.dst_mac, self.src_mac, ethertype)
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p = Packet()
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p.add_protocol(e)
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if vlan_enabled is True:
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p.add_protocol(v)
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p.add_protocol(self.a)
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p.serialize()
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return p
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def test_build_arp_vlan(self):
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p = self._build_arp(True)
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e = self.find_protocol(p, "ethernet")
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ok_(e)
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eq_(e.ethertype, ether.ETH_TYPE_8021Q)
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v = self.find_protocol(p, "vlan")
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ok_(v)
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eq_(v.ethertype, ether.ETH_TYPE_ARP)
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a = self.find_protocol(p, "arp")
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ok_(a)
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eq_(a.hwtype, self.hwtype)
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eq_(a.proto, self.proto)
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eq_(a.hlen, self.hlen)
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eq_(a.plen, self.plen)
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eq_(a.opcode, self.opcode)
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eq_(a.src_mac, self.src_mac)
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eq_(a.src_ip, self.src_ip)
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eq_(a.dst_mac, self.dst_mac)
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eq_(a.dst_ip, self.dst_ip)
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def test_build_arp_novlan(self):
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p = self._build_arp(False)
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e = self.find_protocol(p, "ethernet")
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ok_(e)
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eq_(e.ethertype, ether.ETH_TYPE_ARP)
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a = self.find_protocol(p, "arp")
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ok_(a)
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eq_(a.hwtype, self.hwtype)
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eq_(a.proto, self.proto)
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eq_(a.hlen, self.hlen)
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eq_(a.plen, self.plen)
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eq_(a.opcode, self.opcode)
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eq_(a.src_mac, self.src_mac)
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eq_(a.src_ip, self.src_ip)
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eq_(a.dst_mac, self.dst_mac)
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eq_(a.dst_ip, self.dst_ip)
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@raises(Exception)
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def test_malformed_arp(self):
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m_short_buf = self.buf[1:arp._MIN_LEN]
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arp.parser(m_short_buf)
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