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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.
import binascii
import unittest
import struct
from os_ken import exception
from os_ken.ofproto import ofproto_common, ofproto_parser
from os_ken.ofproto import ofproto_v1_0, ofproto_v1_0_parser
import logging
LOG = logging.getLogger(__name__)
class TestOfproto_Parser(unittest.TestCase):
def setUp(self):
LOG.debug('setUp')
self.bufHello = binascii.unhexlify('0100000800000001')
fr = '010600b0000000020000000000000abc' \
+ '00000100010000000000008700000fff' \
+ '0002aefa39d2b9177472656d61302d30' \
+ '00000000000000000000000000000000' \
+ '000000c0000000000000000000000000' \
+ 'fffe723f9a764cc87673775f30786162' \
+ '63000000000000000000000100000001' \
+ '00000082000000000000000000000000' \
+ '00012200d6c5a1947472656d61312d30' \
+ '00000000000000000000000000000000' \
+ '000000c0000000000000000000000000'
self.bufFeaturesReply = binascii.unhexlify(fr)
pi = '010a005200000000000001010040' \
+ '00020000000000000002000000000001' \
+ '080045000032000000004011f967c0a8' \
+ '0001c0a8000200010001001e00000000' \
+ '00000000000000000000000000000000' \
+ '00000000'
self.bufPacketIn = binascii.unhexlify(pi)
def tearDown(self):
LOG.debug('tearDown')
pass
def testHello(self):
(version,
msg_type,
msg_len,
xid) = ofproto_parser.header(self.bufHello)
self.assertEqual(version, 1)
self.assertEqual(msg_type, 0)
self.assertEqual(msg_len, 8)
self.assertEqual(xid, 1)
def testFeaturesReply(self):
(version,
msg_type,
msg_len,
xid) = ofproto_parser.header(self.bufFeaturesReply)
msg = ofproto_parser.msg(self,
version,
msg_type,
msg_len,
xid,
self.bufFeaturesReply)
LOG.debug(msg)
self.assertIsInstance(msg, ofproto_v1_0_parser.OFPSwitchFeatures)
LOG.debug(msg.ports[65534])
self.assertIsInstance(msg.ports[1], ofproto_v1_0_parser.OFPPhyPort)
self.assertIsInstance(msg.ports[2], ofproto_v1_0_parser.OFPPhyPort)
self.assertIsInstance(msg.ports[65534], ofproto_v1_0_parser.OFPPhyPort)
def testPacketIn(self):
(version,
msg_type,
msg_len,
xid) = ofproto_parser.header(self.bufPacketIn)
msg = ofproto_parser.msg(self,
version,
msg_type,
msg_len,
xid,
self.bufPacketIn)
LOG.debug(msg)
self.assertIsInstance(msg, ofproto_v1_0_parser.OFPPacketIn)
def test_check_msg_len(self):
(version,
msg_type,
msg_len,
xid) = ofproto_parser.header(self.bufPacketIn)
msg_len = len(self.bufPacketIn) + 1
self.assertRaises(AssertionError, ofproto_parser.msg, self, version,
msg_type, msg_len, xid, self.bufPacketIn)
def test_check_msg_parser(self):
(version,
msg_type,
msg_len,
xid) = ofproto_parser.header(self.bufPacketIn)
version = 0xff
self.assertRaises(exception.OFPUnknownVersion, ofproto_parser.msg,
self, version, msg_type, msg_len, xid,
self.bufPacketIn)
class TestMsgBase(unittest.TestCase):
""" Test case for ofproto_parser.MsgBase
"""
def setUp(self):
pass
def tearDown(self):
pass
def test_init(self):
pass
def test_set_xid(self):
xid = 3841413783
c = ofproto_parser.MsgBase(object)
c.set_xid(xid)
self.assertEqual(xid, c.xid)
def test_set_xid_check_xid(self):
xid = 2160492514
c = ofproto_parser.MsgBase(object)
c.xid = xid
self.assertRaises(AssertionError, c.set_xid, xid)
def _test_parser(self, msg_type=ofproto_v1_0.OFPT_HELLO):
version = ofproto_v1_0.OFP_VERSION
msg_len = ofproto_v1_0.OFP_HEADER_SIZE
xid = 2183948390
data = b'\x00\x01\x02\x03'
fmt = ofproto_v1_0.OFP_HEADER_PACK_STR
buf = struct.pack(fmt, version, msg_type, msg_len, xid) \
+ data
res = ofproto_v1_0_parser.OFPHello.parser(
object, version, msg_type, msg_len, xid, bytearray(buf))
self.assertEqual(version, res.version)
self.assertEqual(msg_type, res.msg_type)
self.assertEqual(msg_len, res.msg_len)
self.assertEqual(xid, res.xid)
self.assertEqual(bytes(buf), res.buf)
# test __str__()
list_ = ('version', 'msg_type', 'msg_len', 'xid')
check = {}
for s in str(res).rsplit(','):
if '=' in s:
(k, v,) = s.rsplit('=')
if k in list_:
check[k] = v
self.assertEqual(hex(ofproto_v1_0.OFP_VERSION), check['version'])
self.assertEqual(hex(ofproto_v1_0.OFPT_HELLO), check['msg_type'])
self.assertEqual(hex(msg_len), check['msg_len'])
self.assertEqual(hex(xid), check['xid'])
return True
def test_parser(self):
self.assertTrue(self._test_parser())
def test_parser_check_msg_type(self):
self.assertRaises(AssertionError, self._test_parser,
ofproto_v1_0.OFPT_ERROR)
def _test_serialize(self):
class Datapath(object):
ofproto = ofproto_v1_0
ofproto_parser = ofproto_v1_0_parser
c = ofproto_v1_0_parser.OFPHello(Datapath)
c.serialize()
self.assertEqual(ofproto_v1_0.OFP_VERSION, c.version)
self.assertEqual(ofproto_v1_0.OFPT_HELLO, c.msg_type)
self.assertEqual(0, c.xid)
return True
def test_serialize(self):
self.assertTrue(self._test_serialize())
class TestMsgStrAttr(unittest.TestCase):
""" Test case for ofproto_parser.msg_str_attr
"""
def test_msg_str_attr(self):
class Check(object):
check = 'msg_str_attr_test'
c = Check()
buf = ''
res = ofproto_parser.msg_str_attr(c, buf, ('check',))
str_ = str(res)
str_ = str_.rsplit()
self.assertEqual('check', str_[0])
self.assertEqual('msg_str_attr_test', str_[1])
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