49461e84ec
Signed-off-by: IWASE Yusuke <iwase.yusuke0@gmail.com> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
117 lines
4.2 KiB
Python
117 lines
4.2 KiB
Python
# Copyright (C) 2016 Nippon Telegraph and Telephone Corporation.
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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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import json
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from ryu.app import simple_switch_13
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from ryu.controller import ofp_event
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from ryu.controller.handler import CONFIG_DISPATCHER
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from ryu.controller.handler import set_ev_cls
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from ryu.app.wsgi import ControllerBase
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from ryu.app.wsgi import Response
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from ryu.app.wsgi import route
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from ryu.app.wsgi import WSGIApplication
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from ryu.lib import dpid as dpid_lib
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simple_switch_instance_name = 'simple_switch_api_app'
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url = '/simpleswitch/mactable/{dpid}'
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class SimpleSwitchRest13(simple_switch_13.SimpleSwitch13):
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_CONTEXTS = {'wsgi': WSGIApplication}
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def __init__(self, *args, **kwargs):
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super(SimpleSwitchRest13, self).__init__(*args, **kwargs)
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self.switches = {}
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wsgi = kwargs['wsgi']
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wsgi.register(SimpleSwitchController,
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{simple_switch_instance_name: self})
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@set_ev_cls(ofp_event.EventOFPSwitchFeatures, CONFIG_DISPATCHER)
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def switch_features_handler(self, ev):
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super(SimpleSwitchRest13, self).switch_features_handler(ev)
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datapath = ev.msg.datapath
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self.switches[datapath.id] = datapath
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self.mac_to_port.setdefault(datapath.id, {})
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def set_mac_to_port(self, dpid, entry):
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mac_table = self.mac_to_port.setdefault(dpid, {})
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datapath = self.switches.get(dpid)
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entry_port = entry['port']
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entry_mac = entry['mac']
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if datapath is not None:
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parser = datapath.ofproto_parser
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if entry_port not in mac_table.values():
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for mac, port in mac_table.items():
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# from known device to new device
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actions = [parser.OFPActionOutput(entry_port)]
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match = parser.OFPMatch(in_port=port, eth_dst=entry_mac)
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self.add_flow(datapath, 1, match, actions)
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# from new device to known device
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actions = [parser.OFPActionOutput(port)]
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match = parser.OFPMatch(in_port=entry_port, eth_dst=mac)
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self.add_flow(datapath, 1, match, actions)
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mac_table.update({entry_mac: entry_port})
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return mac_table
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class SimpleSwitchController(ControllerBase):
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def __init__(self, req, link, data, **config):
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super(SimpleSwitchController, self).__init__(req, link, data, **config)
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self.simple_switch_app = data[simple_switch_instance_name]
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@route('simpleswitch', url, methods=['GET'],
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requirements={'dpid': dpid_lib.DPID_PATTERN})
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def list_mac_table(self, req, **kwargs):
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simple_switch = self.simple_switch_app
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dpid = dpid_lib.str_to_dpid(kwargs['dpid'])
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if dpid not in simple_switch.mac_to_port:
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return Response(status=404)
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mac_table = simple_switch.mac_to_port.get(dpid, {})
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body = json.dumps(mac_table)
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return Response(content_type='application/json', body=body)
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@route('simpleswitch', url, methods=['PUT'],
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requirements={'dpid': dpid_lib.DPID_PATTERN})
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def put_mac_table(self, req, **kwargs):
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simple_switch = self.simple_switch_app
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dpid = dpid_lib.str_to_dpid(kwargs['dpid'])
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try:
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new_entry = req.json if req.body else {}
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except ValueError:
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raise Response(status=400)
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if dpid not in simple_switch.mac_to_port:
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return Response(status=404)
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try:
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mac_table = simple_switch.set_mac_to_port(dpid, new_entry)
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body = json.dumps(mac_table)
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return Response(content_type='application/json', body=body)
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except Exception as e:
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return Response(status=500)
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