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# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# vim: tabstop=4 shiftwidth=4 softtabstop=4
import unittest
import logging
import struct
import netaddr
from struct import *
from nose.tools import *
from nose.plugins.skip import Skip, SkipTest
from ryu.ofproto import ether, inet
from ryu.lib import mac
from ryu.lib.packet.ethernet import ethernet
from ryu.lib.packet.packet import Packet
from ryu.lib.packet.arp import arp
LOG = logging.getLogger('test_ethernet')
class Test_ethernet(unittest.TestCase):
""" Test case for ethernet
"""
dst = mac.haddr_to_bin('AA:AA:AA:AA:AA:AA')
src = mac.haddr_to_bin('BB:BB:BB:BB:BB:BB')
ethertype = ether.ETH_TYPE_ARP
length = struct.calcsize(ethernet._PACK_STR)
buf = pack(ethernet._PACK_STR, dst, src, ethertype)
e = ethernet(dst, src, ethertype)
def setUp(self):
pass
def tearDown(self):
pass
def find_protocol(self, pkt, name):
for p in pkt.protocols:
if p.protocol_name == name:
return p
def test_init(self):
eq_(self.dst, self.e.dst)
eq_(self.src, self.e.src)
eq_(self.ethertype, self.e.ethertype)
eq_(self.length, self.e.length)
def test_parser(self):
res, ptype = self.e.parser(self.buf)
LOG.debug((res, ptype))
eq_(res.dst, self.dst)
eq_(res.src, self.src)
eq_(res.ethertype, self.ethertype)
eq_(res.length, self.length)
eq_(ptype, arp)
def test_serialize(self):
data = bytearray()
prev = None
buf = self.e.serialize(data, prev)
fmt = ethernet._PACK_STR
res = struct.unpack(fmt, buf)
eq_(res[0], self.dst)
eq_(res[1], self.src)
eq_(res[2], self.ethertype)
@raises(Exception)
def test_malformed_ethernet(self):
m_short_buf = self.buf[1:ethernet._MIN_LEN]
ethernet.parser(m_short_buf)
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