def wtest_interactive(self):
b = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
b.bind(("localhost",0))
b.listen(1)
c = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
c.connect(b.getsockname())
s,a = b.accept()
server = type("Server", (twink.OpenflowChannel, twink.LoggingChannel), {})()
client = type("Client", (twink.OpenflowChannel, twink.LoggingChannel), {})()
server.attach(s)
client.attach(c)
version, oftype, l, xid = twink.parse_ofp_header(server.recv())
assert oftype==0
version, oftype, l, xid = twink.parse_ofp_header(client.recv())
assert oftype==0
client.send(twink.ofp_header_only(2, version=client.version))
version, oftype, l, xid = twink.parse_ofp_header(server.recv())
assert oftype==2
server.send(twink.ofp_header_only(3, version=server.version))
version, oftype, l, xid = twink.parse_ofp_header(client.recv())
assert oftype==3
server.close()
client.close()
c.close()
s.close()
b.close()
def __call__(self, message, channel): hdr = twink.parse_ofp_header(message) if hdr[1] == 0: channel.send(twink.ofp_header_only(2, version=channel.version)) channel.send(twink.ofp_header_only(20, version=channel.version)) elif hdr[1] == 21: channel.close()
def test_pair1(self):
a,b = twink.sched.socket.socketpair()
x = type("ControllerChannelTestCaseX", (twink.OpenflowServerChannel,twink.LoggingChannel), {})(socket=a)
x.handle = BarrieredReply()
y = twink.ControllerChannel(socket=b)
y.handle = lambda msg, ch: None
x.start()
y.start()
xth = twink.sched.spawn(x.loop)
result = dict(flag1=0, flag2=0)
def cb1(message, ch):
result["flag1"] += 1
flag2 = 0
def cb2(message, ch):
result["flag2"] += 1
y.recv()
y.send(twink.ofp_header_only(2, version=y.version), callback=cb1)
y.send(twink.ofp_header_only(2, version=y.version), callback=cb2)
y.send(twink.ofp_header_only(20, version=y.version))
with twink.ReadWrapper(y, timeout_pause):
y.loop()
assert result["flag1"] == 1
assert result["flag2"] == 1
x.close()
y.close()
xth.join(0.5)
def __call__(self, message, channel): p = twink.parse_ofp_header(message) if p[1] == 20: for msg in self.msgs: q = twink.parse_ofp_header(msg) if q[1] == 2: channel.send(twink.ofp_header_only(3, version=channel.version, xid=q[3])) channel.send(twink.ofp_header_only(21, version=channel.version, xid=p[3])) self.msgs = [] else: self.msgs.append(message)
def wtest_echo(self):
global signal_stop
# blocking server
serv = twink.StreamServer(("localhost",0))
serv.channel_cls = type("Server",(twink.ControllerChannel, twink.AutoEchoChannel, twink.LoggingChannel),{
"accept_versions":[4,],
"handle":staticmethod(dummy_handle)})
serv_thread = threading.Thread(target=serv.serve_forever)
serv_thread.start()
signal_stop = serv.shutdown
try:
s = create_connection(serv.server_address[:2])
ch = type("Client", (twink.OpenflowChannel, twink.LoggingChannel), {"accept_versions":[4,]})()
ch.attach(s)
msg = ch.recv()
assert msg
version, oftype, l, xid = twink.parse_ofp_header(msg)
assert version==4
ch.send(twink.ofp_header_only(2, version=4))
msg = ch.recv()
assert msg
version, oftype, l, xid = twink.parse_ofp_header(msg)
assert oftype == 3
except:
logging.error("client error", exc_info=True)
finally:
ch.close()
serv.shutdown()
serv_thread.join()
def test_pair1(self): a,b = twink.sched.socket.socketpair() x = twink.AutoEchoChannel() x.handle = TypesCapture() y = twink.OpenflowChannel() x.attach(a) y.attach(b) y.recv() y.send(twink.ofp_header_only(2, version=y.version)) y.send(twink.ofp_header_only(5, version=y.version)) with twink.ReadWrapper(x, timeout_pause): x.loop() assert 0 in x.handle.types assert 5 in x.handle.types assert twink.parse_ofp_header(y.recv())[1] == 3 x.close() y.close()
def wtest_interactive(self):
b = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
b.bind(("localhost", 0))
b.listen(1)
c = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
c.connect(b.getsockname())
s, a = b.accept()
server = type("Server", (twink.OpenflowChannel, twink.LoggingChannel),
{})()
client = type("Client", (twink.OpenflowChannel, twink.LoggingChannel),
{})()
server.attach(s)
client.attach(c)
version, oftype, l, xid = twink.parse_ofp_header(server.recv())
assert oftype == 0
version, oftype, l, xid = twink.parse_ofp_header(client.recv())
assert oftype == 0
client.send(twink.ofp_header_only(2, version=client.version))
version, oftype, l, xid = twink.parse_ofp_header(server.recv())
assert oftype == 2
server.send(twink.ofp_header_only(3, version=server.version))
version, oftype, l, xid = twink.parse_ofp_header(client.recv())
assert oftype == 3
server.close()
client.close()
c.close()
s.close()
b.close()
def test_server(self):
s = twink.sched.socket.socket(twink.sched.socket.AF_INET, twink.sched.socket.SOCK_STREAM)
s.bind(("127.0.0.1", 0))
serv = type("S", (twink.StreamServer,), dict(
channel_cls=type("Sc", (twink.AutoEchoChannel, twink.LoggingChannel),
dict(handle=staticmethod(lambda a,b:None)))))(s)
serv.start()
c = twink.sched.socket.socket(twink.sched.socket.AF_INET, twink.sched.socket.SOCK_STREAM)
c.connect(s.getsockname())
ch = type("Cc", (twink.OpenflowChannel, twink.LoggingChannel), {})()
ch.attach(c)
x = ch.recv()
assert ch.version
ch.send(twink.ofp_header_only(2, version=ch.version))
assert twink.parse_ofp_header(ch.recv())[1] == 3
ch.close()
serv.stop()
def test_pair1(self):
a,b = twink.sched.socket.socketpair()
x = twink.OpenflowChannel(socket=a)
y = type("OpenflowServerChannelTestCaseY", (twink.OpenflowServerChannel,), {})(socket=b)
y.handle = auto_echo
x.start()
y.start()
yth = twink.sched.spawn(y.loop)
assert len(x.recv()) > 0
assert x.version == 4
x.send(twink.ofp_header_only(2, version=x.version))
p = twink.parse_ofp_header(x.recv())
assert p[1] == 3
x.close()
y.close()
yth.join(0.5)
def wtest_echo(self):
global signal_stop
# blocking server
serv = twink.StreamServer(("localhost", 0))
serv.channel_cls = type("Server",
(twink.ControllerChannel,
twink.AutoEchoChannel, twink.LoggingChannel),
{
"accept_versions": [
4,
],
"handle": staticmethod(dummy_handle)
})
serv_thread = threading.Thread(target=serv.serve_forever)
serv_thread.start()
signal_stop = serv.shutdown
try:
s = create_connection(serv.server_address[:2])
ch = type("Client", (twink.OpenflowChannel, twink.LoggingChannel),
{"accept_versions": [
4,
]})()
ch.attach(s)
msg = ch.recv()
assert msg
version, oftype, l, xid = twink.parse_ofp_header(msg)
assert version == 4
ch.send(twink.ofp_header_only(2, version=4))
msg = ch.recv()
assert msg
version, oftype, l, xid = twink.parse_ofp_header(msg)
assert oftype == 3
except:
logging.error("client error", exc_info=True)
finally:
ch.close()
serv.shutdown()
serv_thread.join()
def auto_echo(msg, ch): p = twink.parse_ofp_header(msg) if p[1] == 2: ch.send(twink.ofp_header_only(3, version=ch.version, xid=p[3]))
