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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
from struct import *
from nose.tools import *
from ryu.ofproto import ether, inet
from ryu.lib.packet.ethernet import ethernet
from ryu.lib.packet.packet import Packet
from ryu.lib.packet.ipv4 import ipv4
from ryu.lib.packet.vlan import vlan
from ryu.lib.packet.vlan import svlan
LOG = logging.getLogger('test_vlan')
class Test_vlan(unittest.TestCase):
""" Test case for vlan
"""
pcp = 0
cfi = 0
vid = 32
tci = pcp << 15 | cfi << 12 | vid
ethertype = ether.ETH_TYPE_IP
buf = pack(vlan._PACK_STR, tci, ethertype)
v = vlan(pcp, cfi, vid, 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.pcp, self.v.pcp)
eq_(self.cfi, self.v.cfi)
eq_(self.vid, self.v.vid)
eq_(self.ethertype, self.v.ethertype)
def test_parser(self):
res, ptype, _ = self.v.parser(self.buf)
eq_(res.pcp, self.pcp)
eq_(res.cfi, self.cfi)
eq_(res.vid, self.vid)
eq_(res.ethertype, self.ethertype)
eq_(ptype, ipv4)
def test_serialize(self):
data = bytearray()
prev = None
buf = self.v.serialize(data, prev)
fmt = vlan._PACK_STR
res = struct.unpack(fmt, buf)
eq_(res[0], self.tci)
eq_(res[1], self.ethertype)
def _build_vlan(self):
src_mac = '00:07:0d:af:f4:54'
dst_mac = '00:00:00:00:00:00'
ethertype = ether.ETH_TYPE_8021Q
e = ethernet(dst_mac, src_mac, ethertype)
version = 4
header_length = 20
tos = 0
total_length = 24
identification = 0x8a5d
flags = 0
offset = 1480
ttl = 64
proto = inet.IPPROTO_ICMP
csum = 0xa7f2
src = '131.151.32.21'
dst = '131.151.32.129'
option = b'TEST'
ip = ipv4(version, header_length, tos, total_length, identification,
flags, offset, ttl, proto, csum, src, dst, option)
p = Packet()
p.add_protocol(e)
p.add_protocol(self.v)
p.add_protocol(ip)
p.serialize()
return p
def test_build_vlan(self):
p = self._build_vlan()
e = self.find_protocol(p, "ethernet")
ok_(e)
eq_(e.ethertype, ether.ETH_TYPE_8021Q)
v = self.find_protocol(p, "vlan")
ok_(v)
eq_(v.ethertype, ether.ETH_TYPE_IP)
ip = self.find_protocol(p, "ipv4")
ok_(ip)
eq_(v.pcp, self.pcp)
eq_(v.cfi, self.cfi)
eq_(v.vid, self.vid)
eq_(v.ethertype, self.ethertype)
@raises(Exception)
def test_malformed_vlan(self):
m_short_buf = self.buf[1:vlan._MIN_LEN]
vlan.parser(m_short_buf)
def test_json(self):
jsondict = self.v.to_jsondict()
v = vlan.from_jsondict(jsondict['vlan'])
eq_(str(self.v), str(v))
class Test_svlan(unittest.TestCase):
pcp = 0
cfi = 0
vid = 32
tci = pcp << 15 | cfi << 12 | vid
ethertype = ether.ETH_TYPE_8021Q
buf = pack(svlan._PACK_STR, tci, ethertype)
sv = svlan(pcp, cfi, vid, 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.pcp, self.sv.pcp)
eq_(self.cfi, self.sv.cfi)
eq_(self.vid, self.sv.vid)
eq_(self.ethertype, self.sv.ethertype)
def test_parser(self):
res, ptype, _ = self.sv.parser(self.buf)
eq_(res.pcp, self.pcp)
eq_(res.cfi, self.cfi)
eq_(res.vid, self.vid)
eq_(res.ethertype, self.ethertype)
eq_(ptype, vlan)
def test_serialize(self):
data = bytearray()
prev = None
buf = self.sv.serialize(data, prev)
fmt = svlan._PACK_STR
res = struct.unpack(fmt, buf)
eq_(res[0], self.tci)
eq_(res[1], self.ethertype)
def _build_svlan(self):
src_mac = '00:07:0d:af:f4:54'
dst_mac = '00:00:00:00:00:00'
ethertype = ether.ETH_TYPE_8021AD
e = ethernet(dst_mac, src_mac, ethertype)
pcp = 0
cfi = 0
vid = 32
tci = pcp << 15 | cfi << 12 | vid
ethertype = ether.ETH_TYPE_IP
v = vlan(pcp, cfi, vid, ethertype)
version = 4
header_length = 20
tos = 0
total_length = 24
identification = 0x8a5d
flags = 0
offset = 1480
ttl = 64
proto = inet.IPPROTO_ICMP
csum = 0xa7f2
src = '131.151.32.21'
dst = '131.151.32.129'
option = b'TEST'
ip = ipv4(version, header_length, tos, total_length, identification,
flags, offset, ttl, proto, csum, src, dst, option)
p = Packet()
p.add_protocol(e)
p.add_protocol(self.sv)
p.add_protocol(v)
p.add_protocol(ip)
p.serialize()
return p
def test_build_svlan(self):
p = self._build_svlan()
e = self.find_protocol(p, "ethernet")
ok_(e)
eq_(e.ethertype, ether.ETH_TYPE_8021AD)
sv = self.find_protocol(p, "svlan")
ok_(sv)
eq_(sv.ethertype, ether.ETH_TYPE_8021Q)
v = self.find_protocol(p, "vlan")
ok_(v)
eq_(v.ethertype, ether.ETH_TYPE_IP)
ip = self.find_protocol(p, "ipv4")
ok_(ip)
eq_(sv.pcp, self.pcp)
eq_(sv.cfi, self.cfi)
eq_(sv.vid, self.vid)
eq_(sv.ethertype, self.ethertype)
@raises(Exception)
def test_malformed_svlan(self):
m_short_buf = self.buf[1:svlan._MIN_LEN]
svlan.parser(m_short_buf)
def test_json(self):
jsondict = self.sv.to_jsondict()
sv = svlan.from_jsondict(jsondict['svlan'])
eq_(str(self.sv), str(sv))
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