def handle(self):
desc = ofproto_protocol.ProtocolDesc()
residue = b''
while True:
if residue:
data = residue
residue = b''
else:
data = self.request.recv(1024)
if data == b'':
break
if self.verbose:
print(data)
h = ofproto_parser.header(data)
if self.verbose:
print(h)
version, msg_type, msg_len, xid = h
residue = data[msg_len:]
desc.set_version(version=version)
if msg_type == desc.ofproto.OFPT_HELLO:
hello = desc.ofproto_parser.OFPHello(desc)
hello.serialize()
self.request.send(hello.buf)
elif msg_type == desc.ofproto.OFPT_FLOW_MOD:
self._add_msg_to_buf(data, msg_len)
elif version == 4 and msg_type == desc.ofproto.OFPT_EXPERIMENTER:
# This is for OF13 Ext-230 bundle
# TODO: support bundle for OF>1.3
exp = desc.ofproto_parser.OFPExperimenter.parser(
object(), version, msg_type, msg_len, xid, data)
self._add_msg_to_buf(data, msg_len)
if isinstance(exp, desc.ofproto_parser.ONFBundleCtrlMsg):
ctrlrep = desc.ofproto_parser.ONFBundleCtrlMsg(
desc, exp.bundle_id, exp.type + 1, 0, [])
ctrlrep.xid = xid
ctrlrep.serialize()
self.request.send(ctrlrep.buf)
elif msg_type == desc.ofproto.OFPT_BARRIER_REQUEST:
brep = desc.ofproto_parser.OFPBarrierReply(desc)
brep.xid = xid
brep.serialize()
self.request.send(brep.buf)
def parser(cls, buf):
from os_ken.ofproto import ofproto_parser
from os_ken.ofproto import ofproto_protocol
(version, msg_type, msg_len, xid) = ofproto_parser.header(buf)
msg_parser = ofproto_parser._MSG_PARSERS.get(version)
if msg_parser is None:
msg = OFPUnparseableMsg(
None, version, msg_type, msg_len, xid,
buf[cls._MIN_LEN:msg_len])
return cls(msg), cls, buf[msg_len:]
datapath = ofproto_protocol.ProtocolDesc(version=version)
try:
msg = msg_parser(datapath, version, msg_type, msg_len, xid,
buf[:msg_len])
except:
msg = OFPUnparseableMsg(
datapath, version, msg_type, msg_len, xid,
buf[datapath.ofproto.OFP_HEADER_SIZE:msg_len])
return cls(msg), cls, buf[msg_len:]
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)
import socket
from struct import *
from nose.tools import *
from os_ken.ofproto.ofproto_v1_3_parser import *
from os_ken.ofproto import ofproto_v1_3_parser
from os_ken.ofproto import ofproto_v1_3
from os_ken.ofproto import ofproto_protocol
from os_ken.ofproto import ether
from os_ken.ofproto.ofproto_parser import MsgBase
from os_ken import utils
from os_ken.lib import addrconv
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
eq_(res._wc.vlan_vid_mask, 0)
# flow check
eq_(res._flow.vlan_vid, 0)