66 lines
2.2 KiB
Python
66 lines
2.2 KiB
Python
# Copyright (C) 2014 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from ryu.ofproto import ofproto_v1_0
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from ryu.ofproto import ofproto_v1_0_parser
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from ryu.ofproto import ofproto_v1_2
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from ryu.ofproto import ofproto_v1_2_parser
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from ryu.ofproto import ofproto_v1_3
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from ryu.ofproto import ofproto_v1_3_parser
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from ryu.ofproto import ofproto_v1_4
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from ryu.ofproto import ofproto_v1_4_parser
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from ryu.ofproto import ofproto_v1_5
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from ryu.ofproto import ofproto_v1_5_parser
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_versions = {
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ofproto_v1_0.OFP_VERSION: (ofproto_v1_0, ofproto_v1_0_parser),
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ofproto_v1_2.OFP_VERSION: (ofproto_v1_2, ofproto_v1_2_parser),
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ofproto_v1_3.OFP_VERSION: (ofproto_v1_3, ofproto_v1_3_parser),
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ofproto_v1_4.OFP_VERSION: (ofproto_v1_4, ofproto_v1_4_parser),
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ofproto_v1_5.OFP_VERSION: (ofproto_v1_5, ofproto_v1_5_parser),
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}
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# OF versions supported by every apps in this process (intersection)
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_supported_versions = set(_versions.keys())
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def set_app_supported_versions(vers):
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global _supported_versions
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_supported_versions &= set(vers)
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assert _supported_versions, 'No OpenFlow version is available'
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class ProtocolDesc(object):
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"""
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OpenFlow protocol version flavor descriptor
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"""
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def __init__(self, version=None):
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if version is None:
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version = max(_supported_versions)
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self.set_version(version)
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def set_version(self, version):
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assert version in _supported_versions
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(self.ofproto, self.ofproto_parser) = _versions[version]
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@property
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def supported_ofp_version(self):
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return _supported_versions
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