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# Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
#
# 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.
from os_ken.ofproto import ofproto_v1_0
from os_ken.ofproto import ofproto_v1_0_parser
from os_ken.ofproto import ofproto_v1_2
from os_ken.ofproto import ofproto_v1_2_parser
from os_ken.ofproto import ofproto_v1_3
from os_ken.ofproto import ofproto_v1_3_parser
from os_ken.ofproto import ofproto_v1_4
from os_ken.ofproto import ofproto_v1_4_parser
from os_ken.ofproto import ofproto_v1_5
from os_ken.ofproto import ofproto_v1_5_parser
_versions = {
ofproto_v1_0.OFP_VERSION: (ofproto_v1_0, ofproto_v1_0_parser),
ofproto_v1_2.OFP_VERSION: (ofproto_v1_2, ofproto_v1_2_parser),
ofproto_v1_3.OFP_VERSION: (ofproto_v1_3, ofproto_v1_3_parser),
ofproto_v1_4.OFP_VERSION: (ofproto_v1_4, ofproto_v1_4_parser),
ofproto_v1_5.OFP_VERSION: (ofproto_v1_5, ofproto_v1_5_parser),
}
# OF versions supported by every apps in this process (intersection)
_supported_versions = set(_versions.keys())
def set_app_supported_versions(vers):
global _supported_versions
_supported_versions &= set(vers)
assert _supported_versions, 'No OpenFlow version is available'
class ProtocolDesc(object):
"""
OpenFlow protocol version flavor descriptor
"""
def __init__(self, version=None):
if version is None:
version = max(_supported_versions)
self.set_version(version)
def set_version(self, version):
assert version in _supported_versions
(self.ofproto, self.ofproto_parser) = _versions[version]
@property
def supported_ofp_version(self):
return _supported_versions
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