The server that handles request for OFConfig operation Signed-off-by: Isaku Yamahata <[email protected]> --- ryu/lib/of_config/manager.py | 80 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 ryu/lib/of_config/manager.py
diff --git a/ryu/lib/of_config/manager.py b/ryu/lib/of_config/manager.py new file mode 100644 index 0000000..705e775 --- /dev/null +++ b/ryu/lib/of_config/manager.py @@ -0,0 +1,80 @@ +# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation. +# Copyright (C) 2013 Isaku Yamahata <yamahata at private email ne 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. + +import ncclient + +from ryu.base import app_manager +from ryu.controller import handler +from ryu.lib.of_config import capable_switch as ofc_capable_switch +from ryu.lib.of_config import events as ofc_events + + +class OFConfigManager(app_manager.RyuApp): + def __init__(self, *args, **kwargs): + super(OFConfigManager, self).__init__(*args, **kwargs) + self.sessions = {} + + def _send_value(self, ev, ret): + reply = ofc_events.EventOFConfigReply(ev.src, True, ret) + self.send_reply(reply) + + def _send_exception(self, ev, exc): + reply = ofc_events.EventOFConfigReply(ev.src, False, exc) + self.send_reply(reply) + + @handler.set_ev_cls(ofc_events.EventOFConfigRequestConnect) + def connect_handler(self, ev): + try: + capable_switch = ofc_capable_switch.CapableSwitch( + *ev.args, **ev.kwargs) + capable_switch.connect() + except ncclient.NCClientError as exc: + self._send_exception(ev, exc) + return + + session_id = id(capable_switch) + self.sessions[session_id] = capable_switch + self._send_value(ev, session_id) + + @handler.set_ev_cls(ofc_events.EventOFConfigRequestCloseSession) + def close_session_handler(self, ev): + session_id = ev.session_id + capable_switch = self.sessions.get(session_id) + if not capable_switch: + self._send_exception( + ev, ValueError('unknown session %s' % session_id)) + return + ret = capable_switch.close_session() + del self.sessions[session_id] + self._send_value(ev, ret) + + @handler.set_ev_cls(ofc_events.EventOFConfigRequest) + def request_handler(self, ev): + capable_switch = self.sessions.get(ev.session_id) + if not capable_switch: + self._send_exception( + ev, ValueError('unknown session %s' % ev.session_id)) + return + method = getattr(capable_switch, ev.method) + if not method: + self._send_exception(ev, ValueError('unknown method %s' % method)) + return + try: + ret = method(**ev.kwargs) + except ncclient.NCClientError as exc: + self._send_exception(ev, exc) + return + self._send_value(ev, ret) -- 1.7.10.4 ------------------------------------------------------------------------------ Symantec Endpoint Protection 12 positioned as A LEADER in The Forrester Wave(TM): Endpoint Security, Q1 2013 and "remains a good choice" in the endpoint security space. For insight on selecting the right partner to tackle endpoint security challenges, access the full report. http://p.sf.net/sfu/symantec-dev2dev _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
