def test_check_msg_parser(self):
(version, msg_type, msg_len,
xid) = ofproto_parser.header(self.bufPacketIn)
version = 0xff
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
ofproto_parser.msg(self,
version,
msg_type,
msg_len,
xid,
self.bufPacketIn)
def SBP_handler(self, ev):
# parser the msg and handle the SBP message.
# raise the event.
# finish it in service or app.
msg = ev.msg
domain = msg.domain
data = msg.data
if CONF.sbp_proto_type == oxproto_v1_0.OXPS_OPENFLOW:
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
if len(data) == 0:
return
buf += data
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self.network_aware.fake_datapath,
version, msg_type, msg_len, xid, buf)
if msg:
ev = oxp_event.sbp_to_oxp_msg_to_ev(msg)
ev.domain = domain
self.send_event_to_observers(ev, MAIN_DISPATCHER)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
def SBP_handler(self, ev):
# parser the msg and handle the SBP message.
# raise the event.
# finish it in service or app.
msg = ev.msg
domain = msg.domain
data = msg.data
if CONF.sbp_proto_type == oxproto_v1_0.OXPS_OPENFLOW:
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
if len(data) == 0:
return
buf += data
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self.network_aware.fake_datapath,
version, msg_type, msg_len, xid, buf)
if msg:
ev = oxp_event.sbp_to_oxp_msg_to_ev(msg)
ev.domain = domain
self.send_event_to_observers(ev, MAIN_DISPATCHER)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
def SBP_handler(self, ev):
# Parser the msg and raise an event.
# Handle event in service or app.
msg = ev.msg
domain = msg.domain
data = msg.data
if domain.sbp_proto_type == oxproto_v1_0.OXPS_OPENFLOW:
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
if len(data) == 0:
return
buf += data
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
self.logger.debug('ofp msg %s cls %s', msg, msg.__class__)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self.fake_datapath, version, msg_type,
msg_len, xid, buf)
if msg:
ev = oxp_event.sbp_to_oxp_msg_to_ev(msg)
ev.domain = domain
self.send_event_to_observers(ev, MAIN_DISPATCHER)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
def _recv_loop(self):
buf = bytearray()
required_len = ofproto.OFP_HEADER_SIZE
count = 0
while self.is_active:
ret = self.socket.recv(required_len)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
buf)
#LOG.debug('queue msg %s cls %s', msg, msg.__class__)
self.ev_q.queue(ofp_event.ofp_msg_to_ev(msg))
buf = buf[required_len:]
required_len = ofproto.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
gevent.sleep(0)
def blocking_read_sdn_message(self, block_read_written=False):
'''
@returns an SDN message
'''
reader_method = self._sdn_socket.blocking_read
if block_read_written:
reader_method = self._sdn_socket.blocking_read_written
# first read openflow header
msg_buffer = reader_method(OFP_HEADER_SIZE)
while len(msg_buffer) != OFP_HEADER_SIZE:
diff = OFP_HEADER_SIZE - len(msg_buffer)
msg_buffer.extend(reader_method(diff))
# based on size of openflow header, decide how much more to
# read
(version, msg_type, msg_len, xid) = ofproto_parser.header(msg_buffer)
while len(msg_buffer) != msg_len:
diff = msg_len - len(msg_buffer)
msg_buffer.extend(reader_method(diff))
msg = ofproto_parser.msg(_OF_1_0_DATAPATH, version, msg_type, msg_len,
xid, str(msg_buffer))
msg.original_buffer = msg_buffer
return msg
def handle_event(self, header, msg):
#required_len = self.ofp.OFP_HEADER_SIZE
ret = bytearray(msg)
(version, msg_type, msg_len, xid) = ofproto_parser.header(ret)
self.netide_xid = header[NetIDEOps.NetIDE_header['XID']]
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid, ret)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
event_observers = self.ofp_brick.get_observers(ev,self.state)
module_id = header[NetIDEOps.NetIDE_header['MOD_ID']]
for key, value in self.channel.running_modules.iteritems():
if value == module_id and key in event_observers:
module_brick = ryu.base.app_manager.lookup_service_brick(key)
module_brick_handlers = module_brick.get_handlers(ev)
for handler in module_brick_handlers:
handler(ev)
break
# Sending the FENCE message to the Core only if self.netide_xid is not 0
if self.netide_xid is not 0:
msg_to_send = NetIDEOps.netIDE_encode('NETIDE_FENCE', self.netide_xid, module_id, 0, "")
self.channel.socket.send(msg_to_send)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
handler(ev)
# Resetting netide_xid to zero
self.netide_xid = 0
def _test_msg(self, name, wire_msg, json_str):
json_dict = json.loads(json_str)
# on-wire -> OFPxxx -> json
(version, msg_type, msg_len, xid) = ofproto_parser.header(wire_msg)
try:
has_parser, has_serializer = implemented[version][msg_type]
except KeyError:
has_parser = True
has_serializer = True
dp = DummyDatapath(*self._ofp_versions[version])
if has_parser:
msg = ofproto_parser.msg(dp, version, msg_type, msg_len, xid,
wire_msg)
json_dict2 = self._msg_to_jsondict(msg)
# XXXdebug code
open(('/tmp/%s.json' % name), 'wb').write(json.dumps(json_dict2))
eq_(json_dict, json_dict2)
# json -> OFPxxx -> json
msg2 = self._jsondict_to_msg(dp, json_dict)
if has_serializer:
msg2.serialize()
eq_(self._msg_to_jsondict(msg2), json_dict)
eq_(wire_msg, msg2.buf)
def handle_event(self, header, msg):
#required_len = self.ofp.OFP_HEADER_SIZE
ret = bytearray(msg)
(version, msg_type, msg_len, xid) = ofproto_parser.header(ret)
self.netide_xid = header[NetIDEOps.NetIDE_header['XID']]
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid, ret)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
event_observers = self.ofp_brick.get_observers(ev,self.state)
module_id = header[NetIDEOps.NetIDE_header['MOD_ID']]
for key, value in self.channel.running_modules.iteritems():
if value == module_id and key in event_observers:
module_brick = ryu.base.app_manager.lookup_service_brick(key)
module_brick_handlers = module_brick.get_handlers(ev)
for handler in module_brick_handlers:
handler(ev)
break
# Sending the FENCE message to the Core only if self.netide_xid is not 0
if self.netide_xid is not 0:
msg_to_send = NetIDEOps.netIDE_encode('NETIDE_FENCE', self.netide_xid, module_id, 0, "")
self.channel.socket.send(msg_to_send)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
handler(ev)
# Resetting netide_xid to zero
self.netide_xid = 0
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while self.is_active:
ret = self.socket.recv(required_len)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self,
version, msg_type, msg_len, xid, buf)
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
self.principal_connection.receive_principal_message(msg)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def SBP_handler(self, ev):
# Parser the msg and raise an event.
# Handle event in service or app.
msg = ev.msg
domain = msg.domain
data = msg.data
if domain.sbp_proto_type == oxproto_v1_0.OXPS_OPENFLOW:
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
if len(data) == 0:
return
buf += data
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
self.logger.debug('ofp msg %s cls %s', msg, msg.__class__)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self.fake_datapath,
version, msg_type, msg_len, xid, buf)
if msg:
ev = oxp_event.sbp_to_oxp_msg_to_ev(msg)
ev.domain = domain
self.send_event_to_observers(ev, MAIN_DISPATCHER)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
def msg_parser (msg):
msg_decoded = ""
global datapaths
(netide_version, netide_msg_type, netide_msg_len, netide_xid, netide_mod_id, netide_datapath) = NetIDEOps.netIDE_decode_header(msg)
message_data = msg[NetIDEOps.NetIDE_Header_Size:]
ret = bytearray(message_data)
if len(ret) >= ofproto_common.OFP_HEADER_SIZE:
(version, msg_type, msg_len, xid) = ofproto_parser.header(ret)
msg_decoded = ofproto_parser.msg(netide_datapath, version, msg_type, msg_len, xid, ret)
#print(msg_decoded)
if str(msg_decoded).find("OFPSwitchFeatures", 0, len(str(msg_decoded))) != -1:
datapath = msg_decoded.datapath
#print(type(datapath))
if not datapath in datapaths:
datapaths.append(datapath)
return (0, msg_decoded)
if str(msg_decoded).find("OFPPortStatsReply", 0, len(str(msg_decoded))) != -1:
#print(msg_decoded)
#print(str(msg_decoded).find("OFPPortStatsReplay", 0, len(str(msg_decoded))))
return (1, msg_decoded)
if str(msg_decoded).find("OFPFlowStatsReply", 0, len(str(msg_decoded))) != -1:
return (2, msg_decoded)
if str(msg_decoded).find("OFPAggregateStatsReply", 0, len(str(msg_decoded))) != -1:
return (3, msg_decoded)
if str(msg_decoded).find("OFPQueueStatsReply", 0, len(str(msg_decoded))) != -1:
return (4, msg_decoded)
if str(msg_decoded).find("OFPTableStatsReply", 0, len(str(msg_decoded))) != -1:
return (5, msg_decoded)
else:
return (0, msg_decoded)
else:
return (0, msg_decoded)
def blocking_read_sdn_message(self,block_read_written=False):
'''
@returns an SDN message
'''
reader_method = self._sdn_socket.blocking_read
if block_read_written:
reader_method = self._sdn_socket.blocking_read_written
# first read openflow header
msg_buffer = reader_method(OFP_HEADER_SIZE)
while len(msg_buffer) != OFP_HEADER_SIZE:
diff = OFP_HEADER_SIZE - len(msg_buffer)
msg_buffer.extend(reader_method(diff))
# based on size of openflow header, decide how much more to
# read
(version, msg_type, msg_len, xid) = ofproto_parser.header(msg_buffer)
while len(msg_buffer) != msg_len:
diff = msg_len - len(msg_buffer)
msg_buffer.extend(reader_method(diff))
msg = ofproto_parser.msg(
_OF_1_0_DATAPATH, version, msg_type, msg_len,
xid, str(msg_buffer))
msg.original_buffer = msg_buffer
return msg
def _test_msg(self, name, wire_msg, json_str):
json_dict = json.loads(json_str)
# on-wire -> OFPxxx -> json
(version, msg_type, msg_len, xid) = ofproto_parser.header(wire_msg)
try:
has_parser, has_serializer = implemented[version][msg_type]
except KeyError:
has_parser = True
has_serializer = True
dp = DummyDatapath(*self._ofp_versions[version])
if has_parser:
msg = ofproto_parser.msg(dp, version, msg_type, msg_len, xid,
wire_msg)
json_dict2 = self._msg_to_jsondict(msg)
# XXXdebug code
open(('/tmp/%s.json' % name), 'wb').write(json.dumps(json_dict2))
eq_(json_dict, json_dict2)
# json -> OFPxxx -> json
msg2 = self._jsondict_to_msg(dp, json_dict)
if has_serializer:
msg2.serialize()
eq_(self._msg_to_jsondict(msg2), json_dict)
eq_(wire_msg, msg2.buf)
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)
ok_(isinstance(msg, ofproto_v1_0_parser.OFPPacketIn))
def _on_message(self, data):
(version, msg_type, msg_len, xid) = ofproto_parser.header(self._msg_header)
assert len(data) == msg_len - ofproto_common.OFP_HEADER_SIZE
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid, self._msg_header+data)
logging.getLogger("openflow").debug("RECV %s %s" % (self.address, msg))
self.dispatch(msg)
if not self.stream.closed():
self.stream.read_bytes(ofproto_common.OFP_HEADER_SIZE, stack_context.wrap(self._on_header))
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while self.state != DEAD_DISPATCHER:
ret = ""
try:
ret = self.socket.recv(required_len)
except SocketTimeout:
continue
except ssl.SSLError:
# eventlet throws SSLError (which is a subclass of IOError)
# on SSL socket read timeout; re-try the loop in this case.
continue
except (EOFError, IOError):
break
if len(ret) == 0:
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
buf[:msg_len])
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [
handler for handler in self.ofp_brick.get_handlers(ev)
if self.state in dispatchers(handler)
]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while self.state != DEAD_DISPATCHER:
ret = ""
try:
ret = self.socket.recv(required_len)
except SocketTimeout:
continue
except ssl.SSLError:
# eventlet throws SSLError (which is a subclass of IOError)
# on SSL socket read timeout; re-try the loop in this case.
continue
except (EOFError, IOError):
break
if len(ret) == 0:
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(
self, version, msg_type, msg_len, xid, buf[:msg_len])
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while True:
ret = ""
try:
ret = self.socket.recv(required_len)
except:
# Hit socket timeout; decide what to do.
if self.close_requested:
pass
else:
continue
if (len(ret) == 0) or (self.close_requested):
self.socket.close()
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
buf[:msg_len])
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [
handler for handler in self.ofp_brick.get_handlers(ev)
if self.state in dispatchers(handler)
]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while True:
ret = ""
try:
ret = self.socket.recv(required_len)
except:
# Hit socket timeout; decide what to do.
if self.close_requested:
pass
else:
continue
if (len(ret) == 0) or (self.close_requested):
self.socket.close()
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(
self, version, msg_type, msg_len, xid, buf[:msg_len])
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
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)
ok_(isinstance(msg, ofproto_v1_0_parser.OFPSwitchFeatures))
LOG.debug(msg.ports[65534])
ok_(isinstance(msg.ports[1], ofproto_v1_0_parser.OFPPhyPort))
ok_(isinstance(msg.ports[2], ofproto_v1_0_parser.OFPPhyPort))
ok_(isinstance(msg.ports[65534], ofproto_v1_0_parser.OFPPhyPort))
def error_msg_handler(self, ev):
err_msg = ev.msg
#self.logger.info('OFPErrorMsg received: type=0x%02x code=0x%02x message=%s', msg.type, msg.code, utils.hex_array(msg.data))
if err_msg.type == ofproto_v1_3.OFPET_FLOW_MOD_FAILED and err_msg.code == ofproto_v1_3.OFPFMFC_TABLE_FULL:
print 'caputred full table error message'
self.rand_remove(err_msg.datapath)
#parser = err_msg.datapath.ofproto_parser
(version,msg_type,msg_len,xid)= ofproto_parser.header(err_msg.data)
print 'version %s, msg_type %s, msg_len %s, xid %s, len %s' % (version, msg_type, msg_len, xid, len(err_msg.data))
msg = ofproto_parser.msg(err_msg.datapath, version,msg_type,msg_len,xid,err_msg.data)
#controller will assign a new xid
msg.xid=None
error_msg.datapath.send_msg(msg)
def decode_sent_message(msg):
(netide_version, netide_msg_type, netide_msg_len, netide_xid, netide_mod_id, netide_datapath) = NetIDEOps.netIDE_decode_header(msg)
print(netide_version, netide_msg_type, netide_msg_len, netide_xid, netide_mod_id, netide_datapath)
message_data = msg[NetIDEOps.NetIDE_Header_Size:]
ret = bytearray(message_data)
#print(len(message_data))
if len(ret) >= ofproto_common.OFP_HEADER_SIZE:
#prrr = struct.unpack('BBHI', message_data)
#print(prrr)
(version, msg_type, msg_len, xid) = ofproto_parser.header(ret)
print(version, msg_type, msg_len, xid)
msg_decoded = ofproto_parser.msg(netide_datapath, version, msg_type, msg_len, xid, ret)
print(msg_decoded)
def recv_ofp(self):
logging.debug("%s", binascii.hexlify(self.data))
self.recv(ofproto_common.OFP_HEADER_SIZE)
version, msg_type, msg_len, xid = ofproto_parser.header(self.data)
self.recv(msg_len)
msg = ofproto_parser.msg(self,
version, msg_type, msg_len, xid, self.data[:msg_len])
self.data = self.data[msg_len:]
return msg
def OF_error_msg_handler(self, event):
msg = event.msg
try:
(version, msg_type, msg_len, xid) = ofproto_parser.header(msg.data)
ryu_msg = ofproto_parser.msg(
self._datapath, version, msg_type,
msg_len - ofproto_common.OFP_HEADER_SIZE, xid, msg.data)
LOG.error('OFPErrorMsg received: %s', ryu_msg)
except Exception:
LOG.error('Unrecognized OFPErrorMsg received: '
'type=0x%(type)02x code=0x%(code)02x '
'message=%(msg)s',
{'type': msg.type, 'code': msg.code,
'msg': utils.hex_array(msg.data)})
def recv_ofp(self):
logging.debug("%s", binascii.hexlify(self.data))
self.recv(ofproto_common.OFP_HEADER_SIZE)
version, msg_type, msg_len, xid = ofproto_parser.header(self.data)
self.recv(msg_len)
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
self.data[:msg_len])
self.data = self.data[msg_len:]
return msg
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)
ok_(isinstance(msg, ofproto_v1_0_parser.OFPPacketIn))
def _test_msg(self, name, wire_msg, json_str):
json_dict = json.loads(json_str)
# on-wire -> OFPxxx -> json
(version, msg_type, msg_len, xid) = ofproto_parser.header(wire_msg)
try:
has_parser, has_serializer = implemented[version][msg_type]
except KeyError:
has_parser = True
has_serializer = True
dp = ofproto_protocol.ProtocolDesc(version=version)
if has_parser:
msg = ofproto_parser.msg(dp, version, msg_type, msg_len, xid,
wire_msg)
json_dict2 = self._msg_to_jsondict(msg)
# XXXdebug code
open(('/tmp/%s.json' % name), 'wb').write(json.dumps(json_dict2))
eq_(json_dict, json_dict2)
# json -> OFPxxx -> json
msg2 = self._jsondict_to_msg(dp, json_dict)
if has_serializer:
msg2.serialize()
eq_(self._msg_to_jsondict(msg2), json_dict)
eq_(wire_msg, msg2.buf)
# check if "len" "length" fields can be omitted
def _remove(d, names):
f = lambda x: _remove(x, names)
if isinstance(d, list):
return map(f, d)
if isinstance(d, dict):
d2 = {}
for k, v in d.iteritems():
if k in names:
continue
d2[k] = f(v)
return d2
return d
json_dict3 = _remove(json_dict, ['len', 'length'])
msg3 = self._jsondict_to_msg(dp, json_dict3)
msg3.serialize()
eq_(wire_msg, msg3.buf)
msg2.serialize()
eq_(wire_msg, msg2.buf)
def _test_msg(self, name, wire_msg, json_str):
json_dict = json.loads(json_str)
# on-wire -> OFPxxx -> json
(version, msg_type, msg_len, xid) = ofproto_parser.header(wire_msg)
try:
has_parser, has_serializer = implemented[version][msg_type]
except KeyError:
has_parser = True
has_serializer = True
dp = DummyDatapath(*self._ofp_versions[version])
if has_parser:
msg = ofproto_parser.msg(dp, version, msg_type, msg_len, xid,
wire_msg)
json_dict2 = self._msg_to_jsondict(msg)
# XXXdebug code
open(('/tmp/%s.json' % name), 'wb').write(json.dumps(json_dict2))
eq_(json_dict, json_dict2)
# json -> OFPxxx -> json
msg2 = self._jsondict_to_msg(dp, json_dict)
if has_serializer:
msg2.serialize()
eq_(self._msg_to_jsondict(msg2), json_dict)
eq_(wire_msg, msg2.buf)
# check if "len" "length" fields can be omitted
def _remove(d, names):
f = lambda x: _remove(x, names)
if isinstance(d, list):
return map(f, d)
if isinstance(d, dict):
d2 = {}
for k, v in d.iteritems():
if k in names:
continue
d2[k] = f(v)
return d2
return d
json_dict3 = _remove(json_dict, ['len', 'length'])
msg3 = self._jsondict_to_msg(dp, json_dict3)
msg3.serialize()
eq_(wire_msg, msg3.buf)
msg2.serialize()
eq_(wire_msg, msg2.buf)
def handle_event(self, header, msg, of_proto):
#required_len = self.ofp.OFP_HEADER_SIZE
ret = bytearray(msg)
(version, msg_type, msg_len, xid) = ofproto_parser.header(ret)
self.netide_xid = header[NetIDEOps.NetIDE_header['XID']]
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid, ret)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
event_observers = self.ofp_brick.get_observers(ev, self.state)
module_id = header[NetIDEOps.NetIDE_header['MOD_ID']]
for key, value in self.channel.running_modules.iteritems():
if value == module_id and key in event_observers:
module_brick = ryu.base.app_manager.lookup_service_brick(
key)
module_brick_handlers = module_brick.get_handlers(ev)
for handler in module_brick_handlers:
handler(ev)
break
# Sending the FENCE message to the Core only if self.netide_xid is not 0
if self.netide_xid is not 0:
msg_to_send = NetIDEOps.netIDE_encode('NETIDE_FENCE',
self.netide_xid,
module_id, 0, "")
self.channel.socket.send(msg_to_send)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [
handler for handler in self.ofp_brick.get_handlers(ev)
if self.state in dispatchers(handler)
]
for handler in handlers:
# we record that we received a feature reply from that specific device
if msg_type == of_proto.OFPT_FEATURES_REPLY:
self.datapath_init[msg.datapath.id] = True
# we do not allow multipart messages until the feature_reply has been received (needed for OF1.3 or higher)
if of_proto.OFP_VERSION >= 0x04:
if msg_type == of_proto.OFPT_MULTIPART_REPLY and msg.datapath.id not in self.datapath_init:
break
handler(ev)
# Resetting netide_xid to zero
self.netide_xid = 0
def handle_event(self, header, msg, of_proto):
#required_len = self.ofp.OFP_HEADER_SIZE
ret = bytearray(msg)
(version, msg_type, msg_len, xid) = ofproto_parser.header(ret)
self.netide_xid = header[NetIDEOps.NetIDE_header['XID']]
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid, ret)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
event_observers = self.ofp_brick.get_observers(ev,self.state)
module_id = header[NetIDEOps.NetIDE_header['MOD_ID']]
for key, value in self.channel.running_modules.iteritems():
if value == module_id and key in event_observers:
module_brick = ryu.base.app_manager.lookup_service_brick(key)
module_brick_handlers = module_brick.get_handlers(ev)
for handler in module_brick_handlers:
handler(ev)
break
# Sending the FENCE message to the Core only if self.netide_xid is not 0
if self.netide_xid is not 0:
msg_to_send = NetIDEOps.netIDE_encode('NETIDE_FENCE', self.netide_xid, module_id, 0, "")
self.channel.socket.send(msg_to_send)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
# we record that we received a feature reply from that specific device
if msg_type == of_proto.OFPT_FEATURES_REPLY:
self.datapath_init[msg.datapath.id] = True
# we do not allow multipart messages until the feature_reply has been received (needed for OF1.3 or higher)
if of_proto.OFP_VERSION >= 0x04:
if msg_type == of_proto.OFPT_MULTIPART_REPLY and msg.datapath.id not in self.datapath_init:
break
handler(ev)
# Resetting netide_xid to zero
self.netide_xid = 0
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)
ok_(isinstance(msg, ofproto_v1_0_parser.OFPSwitchFeatures))
LOG.debug(msg.ports[65534])
ok_(isinstance(msg.ports[1], ofproto_v1_0_parser.OFPPhyPort))
ok_(isinstance(msg.ports[2], ofproto_v1_0_parser.OFPPhyPort))
ok_(isinstance(msg.ports[65534], ofproto_v1_0_parser.OFPPhyPort))
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while self.is_active:
ret = self.socket.recv(required_len)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
buf)
#LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
handlers = [
handler for handler in self.ofp_brick.get_handlers(ev)
if self.state in handler.dispatchers
]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while self.is_active:
ret = self.socket.recv(required_len)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self,
version, msg_type, msg_len, xid, buf)
#LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in handler.dispatchers]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
required_len = ofproto.OFP_HEADER_SIZE
while self.is_active:
ret = self.socket.recv(ofproto.OFP_MSG_SIZE_MAX)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
buf)
#LOG.debug('queue msg %s cls %s', msg, msg.__class__)
self.recv_q.put(msg)
buf = buf[required_len:]
required_len = ofproto.OFP_HEADER_SIZE
def _recv_loop(self):
buf = bytearray()
required_len = ofproto.OFP_HEADER_SIZE
while self.is_active:
ret = self.socket.recv(ofproto.OFP_MSG_SIZE_MAX)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self,
version, msg_type, msg_len, xid, buf)
#LOG.debug('queue msg %s cls %s', msg, msg.__class__)
self.recv_q.put(msg)
buf = buf[required_len:]
required_len = ofproto.OFP_HEADER_SIZE
def packet_in_handler(self,msg):
version = ofproto.OFP_VERSION
msg_type = ofproto.OFPT_PACKET_IN
msg_len = ofproto.OFP_PACKET_IN_SIZE
in_port = msg['inport']
buf = self.packet_to_network(msg)
buf_len = len(buf)
zfill = '\x00' * 1
# TODO: buffer_id is set to -1 since is not provided by the shim client
data = self.to_hex_string(version,1) \
+ self.to_hex_string(msg_type,1) \
+ self.to_hex_string(msg_len,2) \
+ self.to_hex_string(0,4) \
+ self.to_hex_string(0xFFFFFFFF,4) \
+ self.to_hex_string(msg_len + buf_len,2) \
+ self.to_hex_string(in_port,2) \
+ self.to_hex_string(ofproto.OFPR_NO_MATCH,1) \
+ zfill \
+ buf
packet_in = ofproto_parser.msg(self, version, msg_type, msg_len, 0, data)
print "Backend. Datapath: " , self.id, " packet_in:", packet_in
self.register_event(packet_in)
def _test_msg(self, name, wire_msg, json_str):
def bytes_eq(buf1, buf2):
if buf1 != buf2:
msg = 'EOF in either data'
for i in range(0, min(len(buf1), len(buf2))):
c1 = six.indexbytes(six.binary_type(buf1), i)
c2 = six.indexbytes(six.binary_type(buf2), i)
if c1 != c2:
msg = 'differs at chr %d, %d != %d' % (i, c1, c2)
break
assert buf1 == buf2, "%r != %r, %s" % (buf1, buf2, msg)
json_dict = json.loads(json_str)
# on-wire -> OFPxxx -> json
(version, msg_type, msg_len, xid) = ofproto_parser.header(wire_msg)
try:
has_parser, has_serializer = implemented[version][msg_type]
except KeyError:
has_parser = True
has_serializer = True
dp = ofproto_protocol.ProtocolDesc(version=version)
if has_parser:
try:
msg = ofproto_parser.msg(dp, version, msg_type, msg_len, xid,
wire_msg)
json_dict2 = self._msg_to_jsondict(msg)
except exception.OFPTruncatedMessage as e:
json_dict2 = {
'OFPTruncatedMessage': self._msg_to_jsondict(e.ofpmsg)
}
# XXXdebug code
open(('/tmp/%s.json' % name), 'w').write(json.dumps(json_dict2))
eq_(json_dict, json_dict2)
if 'OFPTruncatedMessage' in json_dict2:
return
# json -> OFPxxx -> json
xid = json_dict[list(json_dict.keys())[0]].pop('xid', None)
msg2 = self._jsondict_to_msg(dp, json_dict)
msg2.set_xid(xid)
if has_serializer:
msg2.serialize()
eq_(self._msg_to_jsondict(msg2), json_dict)
bytes_eq(wire_msg, msg2.buf)
# check if "len" "length" fields can be omitted
def _remove(d, names):
f = lambda x: _remove(x, names)
if isinstance(d, list):
return list(map(f, d))
if isinstance(d, dict):
d2 = {}
for k, v in d.items():
if k in names:
continue
d2[k] = f(v)
return d2
return d
json_dict3 = _remove(json_dict, ['len', 'length'])
msg3 = self._jsondict_to_msg(dp, json_dict3)
msg3.set_xid(xid)
msg3.serialize()
bytes_eq(wire_msg, msg3.buf)
msg2.serialize()
bytes_eq(wire_msg, msg2.buf)
def _test_msg(self, name, wire_msg, json_str):
def bytes_eq(buf1, buf2):
if buf1 != buf2:
msg = 'EOF in either data'
for i in range(0, min(len(buf1), len(buf2))):
c1 = six.indexbytes(six.binary_type(buf1), i)
c2 = six.indexbytes(six.binary_type(buf2), i)
if c1 != c2:
msg = 'differs at chr %d, %d != %d' % (i, c1, c2)
break
assert buf1 == buf2, "%r != %r, %s" % (buf1, buf2, msg)
json_dict = json.loads(json_str)
# on-wire -> OFPxxx -> json
(version, msg_type, msg_len, xid) = ofproto_parser.header(wire_msg)
try:
has_parser, has_serializer = implemented[version][msg_type]
except KeyError:
has_parser = True
has_serializer = True
dp = ofproto_protocol.ProtocolDesc(version=version)
if has_parser:
msg = ofproto_parser.msg(dp, version, msg_type, msg_len, xid,
wire_msg)
json_dict2 = self._msg_to_jsondict(msg)
# XXXdebug code
open(('/tmp/%s.json' % name), 'w').write(json.dumps(json_dict2))
eq_(json_dict, json_dict2)
# json -> OFPxxx -> json
xid = json_dict[list(json_dict.keys())[0]].pop('xid', None)
msg2 = self._jsondict_to_msg(dp, json_dict)
msg2.set_xid(xid)
if has_serializer:
msg2.serialize()
eq_(self._msg_to_jsondict(msg2), json_dict)
bytes_eq(wire_msg, msg2.buf)
# check if "len" "length" fields can be omitted
def _remove(d, names):
f = lambda x: _remove(x, names)
if isinstance(d, list):
return list(map(f, d))
if isinstance(d, dict):
d2 = {}
for k, v in d.items():
if k in names:
continue
d2[k] = f(v)
return d2
return d
json_dict3 = _remove(json_dict, ['len', 'length'])
msg3 = self._jsondict_to_msg(dp, json_dict3)
msg3.set_xid(xid)
msg3.serialize()
bytes_eq(wire_msg, msg3.buf)
msg2.serialize()
bytes_eq(wire_msg, msg2.buf)
def _recv_loop(self):
buf = bytearray()
count = 0
min_read_len = remaining_read_len = ofproto_common.OFP_HEADER_SIZE
while self.state != DEAD_DISPATCHER:
try:
read_len = min_read_len
if remaining_read_len > min_read_len:
read_len = remaining_read_len
ret = self.socket.recv(read_len)
except SocketTimeout:
continue
except ssl.SSLError:
# eventlet throws SSLError (which is a subclass of IOError)
# on SSL socket read timeout; re-try the loop in this case.
continue
except (EOFError, IOError):
break
if not ret:
break
buf += ret
buf_len = len(buf)
while buf_len >= min_read_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
if msg_len < min_read_len:
# Someone isn't playing nicely; log it, and try something sane.
LOG.debug(
"Message with invalid length %s received from switch at address %s",
msg_len, self.address)
msg_len = min_read_len
if buf_len < msg_len:
remaining_read_len = (msg_len - buf_len)
break
msg = ofproto_parser.msg(self, version, msg_type, msg_len, xid,
buf[:msg_len])
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
def dispatchers(x):
return x.callers[ev.__class__].dispatchers
handlers = [
handler for handler in self.ofp_brick.get_handlers(ev)
if self.state in dispatchers(handler)
]
for handler in handlers:
handler(ev)
buf = buf[msg_len:]
buf_len = len(buf)
remaining_read_len = min_read_len
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
count = 0
min_read_len = remaining_read_len = ofproto_common.OFP_HEADER_SIZE
while self.state != DEAD_DISPATCHER:
try:
read_len = min_read_len
if (remaining_read_len > min_read_len):
read_len = remaining_read_len
ret = self.socket.recv(read_len)
except SocketTimeout:
continue
except ssl.SSLError:
# eventlet throws SSLError (which is a subclass of IOError)
# on SSL socket read timeout; re-try the loop in this case.
continue
except (EOFError, IOError):
break
if len(ret) == 0:
break
buf += ret
buf_len = len(buf)
while buf_len >= min_read_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
if (msg_len < min_read_len):
# Someone isn't playing nicely; log it, and try something sane.
LOG.debug("Message with invalid length %s received from switch at address %s",
msg_len, self.address)
msg_len = min_read_len
if buf_len < msg_len:
remaining_read_len = (msg_len - buf_len)
break
msg = ofproto_parser.msg(
self, version, msg_type, msg_len, xid, buf[:msg_len])
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
handler(ev)
buf = buf[msg_len:]
buf_len = len(buf)
remaining_read_len = min_read_len
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)
def _recv_loop(self):
buf = bytearray()
required_len = ofproto_common.OFP_HEADER_SIZE
count = 0
while self.is_active:
ret = self.socket.recv(required_len)
if len(ret) == 0:
self.is_active = False
break
buf += ret
while len(buf) >= required_len:
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
required_len = msg_len
if len(buf) < required_len:
break
msg = ofproto_parser.msg(self,
version, msg_type, msg_len, xid, buf)
# LOG.debug('queue msg %s cls %s', msg, msg.__class__)
# -------------------------- Fujitsu code start -----------------------------
# For optical enhancing
LOG.debug('receive data (dpid=%s) <%s> [%s]', str(self.id),
self.msgtype_dict.setdefault(msg_type, 'unknown(%d)' % msg_type),
binascii.hexlify(buf))
# debug mode (replace to flow_stats_reply message for debug)
if CONF.dbg_flow_stats_reply_path is not None and isinstance(msg, self.ofproto_parser.OFPFlowStatsReply):
buf_tmp = ''
bin_len = 0
try:
fl = open(CONF.dbg_flow_stats_reply_path)
bin_data = ''
for line in fl:
bin_data += line
bin_len = len(bin_data) // 2
buf_tmp = bytearray()
for i in range(0,bin_len):
buf_tmp.append(struct.pack("B", int(bin_data[i*2:i*2+2],16)))
except:
# not found data file. (default sequence)
LOG.debug("_recv_loop : flow-stats-reply-file(%s) open error.", CONF.dbg_flow_stats_reply_path)
if buf_tmp != '' :
msg = ofproto_parser.msg(self,
version, msg_type, bin_len, xid, buf_tmp)
LOG.debug('replace receive data(TEST DATA:%s) (dpid=%s) <OFPT_MULTIPART_REPLY> [%s]',
CONF.dbg_flow_stats_reply_path, str(self.id),
binascii.hexlify(buf_tmp))
# -------------------------- Fujitsu code end -------------------------------
if msg:
ev = ofp_event.ofp_msg_to_ev(msg)
self.ofp_brick.send_event_to_observers(ev, self.state)
dispatchers = lambda x: x.callers[ev.__class__].dispatchers
handlers = [handler for handler in
self.ofp_brick.get_handlers(ev) if
self.state in dispatchers(handler)]
for handler in handlers:
handler(ev)
buf = buf[required_len:]
required_len = ofproto_common.OFP_HEADER_SIZE
# We need to schedule other greenlets. Otherwise, ryu
# can't accept new switches or handle the existing
# switches. The limit is arbitrary. We need the better
# approach in the future.
count += 1
if count > 2048:
count = 0
hub.sleep(0)