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# Copyright (C) 2014 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 unittest
import logging
import socket
from struct import *
from os_ken.ofproto.ofproto_v1_3_parser import *
from os_ken.ofproto import ofproto_v1_3
from os_ken.ofproto import ofproto_protocol
LOG = logging.getLogger('test_ofproto_v13')
_Datapath = ofproto_protocol.ProtocolDesc(version=ofproto_v1_3.OFP_VERSION)
class TestOFPMatch(unittest.TestCase):
""" Test case for ofproto_v1_3_parser.OFPMatch
"""
def test_init(self):
res = OFPMatch()
# wc check
self.assertEqual(res._wc.vlan_vid_mask, 0)
# flow check
self.assertEqual(res._flow.vlan_vid, 0)
def _test_serialize_and_parser(self, match, header, value, mask=None):
cls_ = OFPMatchField._FIELDS_HEADERS.get(header)
pack_str = cls_.pack_str.replace('!', '')
fmt = '!HHI' + pack_str
# serialize
buf = bytearray()
length = match.serialize(buf, 0)
self.assertEqual(length, len(buf))
if mask and len(buf) > calcsize(fmt):
fmt += pack_str
res = list(unpack_from(fmt, bytes(buf), 0)[3:])
if type(value) is list:
res_value = res[:calcsize(pack_str) // 2]
self.assertEqual(res_value, value)
if mask:
res_mask = res[calcsize(pack_str) // 2:]
self.assertEqual(res_mask, mask)
else:
res_value = res.pop(0)
if cls_.__name__ == 'MTVlanVid':
self.assertEqual(res_value, value | ofproto.OFPVID_PRESENT)
else:
self.assertEqual(res_value, value)
if mask and res and res[0]:
res_mask = res[0]
self.assertEqual(res_mask, mask)
# parser
res = match.parser(bytes(buf), 0)
self.assertEqual(res.type, ofproto.OFPMT_OXM)
self.assertEqual(res.fields[0].header, header)
self.assertEqual(res.fields[0].value, value)
if mask and res.fields[0].mask is not None:
self.assertEqual(res.fields[0].mask, mask)
# to_jsondict
jsondict = match.to_jsondict()
# from_jsondict
match2 = match.from_jsondict(jsondict["OFPMatch"])
buf2 = bytearray()
match2.serialize(buf2, 0)
self.assertEqual(str(match), str(match2))
self.assertEqual(buf, buf2)
# set_vlan_vid
def _test_set_vlan_vid(self, vid, mask=None):
header = ofproto.OXM_OF_VLAN_VID
match = OFPMatch()
if mask is None:
match.set_vlan_vid(vid)
else:
header = ofproto.OXM_OF_VLAN_VID_W
match.set_vlan_vid_masked(vid, mask)
self._test_serialize_and_parser(match, header, vid, mask)
def _test_set_vlan_vid_none(self):
header = ofproto.OXM_OF_VLAN_VID
match = OFPMatch()
match.set_vlan_vid_none()
value = ofproto.OFPVID_NONE
cls_ = OFPMatchField._FIELDS_HEADERS.get(header)
pack_str = cls_.pack_str.replace('!', '')
fmt = '!HHI' + pack_str
# serialize
buf = bytearray()
length = match.serialize(buf, 0)
self.assertEqual(length, len(buf))
res = list(unpack_from(fmt, bytes(buf), 0)[3:])
res_value = res.pop(0)
self.assertEqual(res_value, value)
# parser
res = match.parser(bytes(buf), 0)
self.assertEqual(res.type, ofproto.OFPMT_OXM)
self.assertEqual(res.fields[0].header, header)
self.assertEqual(res.fields[0].value, value)
# to_jsondict
jsondict = match.to_jsondict()
# from_jsondict
match2 = match.from_jsondict(jsondict["OFPMatch"])
buf2 = bytearray()
match2.serialize(buf2, 0)
self.assertEqual(str(match), str(match2))
self.assertEqual(buf, buf2)
def test_set_vlan_vid_mid(self):
self._test_set_vlan_vid(2047)
def test_set_vlan_vid_max(self):
self._test_set_vlan_vid(0xfff)
def test_set_vlan_vid_min(self):
self._test_set_vlan_vid(0)
def test_set_vlan_vid_masked_mid(self):
self._test_set_vlan_vid(2047, 0xf0f)
def test_set_vlan_vid_masked_max(self):
self._test_set_vlan_vid(2047, 0xfff)
def test_set_vlan_vid_masked_min(self):
self._test_set_vlan_vid(2047, 0)
def test_set_vlan_vid_none(self):
self._test_set_vlan_vid_none()
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