def msg(datapath, version, msg_type, msg_len, xid, buf):
exp = None
try:
assert len(buf) >= msg_len
except AssertionError as e:
exp = e
msg_parser = _MSG_PARSERS.get(version)
if msg_parser is None:
raise exception.OFPUnknownVersion(version=version)
try:
msg = msg_parser(datapath, version, msg_type, msg_len, xid, buf)
except exception.OFPTruncatedMessage as e:
raise e
except:
LOG.exception(
'Encountered an error while parsing OpenFlow packet from switch. '
'This implies the switch sent a malformed OpenFlow packet. '
'version 0x%02x msg_type %d msg_len %d xid %d buf %s', version,
msg_type, msg_len, xid, utils.hex_array(buf))
msg = None
if exp:
raise exp
return msg
def msg(datapath, version, msg_type, msg_len, xid, buf):
assert len(buf) >= msg_len
msg_parser = _MSG_PARSERS.get(version)
if msg_parser is None:
raise exception.OFPUnknownVersion(version=version)
return msg_parser(datapath, version, msg_type, msg_len, xid, buf)
def msg(datapath, version, msg_type, msg_len, xid, buf):
assert len(buf) >= msg_len
msg_parser = _MSG_PARSERS.get(version)
if msg_parser is None:
raise exception.OFPUnknownVersion(version=version)
try:
return msg_parser(datapath, version, msg_type, msg_len, xid, buf)
except:
LOG.exception(
'Encounter an error during parsing OpenFlow packet from switch.'
'This implies switch sending a malformed OpenFlow packet.'
'version 0x%02x msg_type %d msg_len %d xid %d buf %s',
version, msg_type, msg_len, xid, utils.bytearray_to_hex(buf))
return None