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Viewing changes to neutron/plugins/ofagent/agent/ofswitch.py

  • Committer: Package Import Robot
  • Author(s): James Page
  • Date: 2015-03-30 11:17:19 UTC
  • mfrom: (1.1.21)
  • Revision ID: package-import@ubuntu.com-20150330111719-h0gx7233p4jkkgfh
Tags: 1:2015.1~b3-0ubuntu1
https://launchpad.net/bugs/1263539
* New upstream milestone release:
  - d/control: Align version requirements with upstream.
  - d/control: Add new dependency on oslo-log.
  - d/p/*: Rebase.
  - d/control,d/neutron-plugin-hyperv*: Dropped, decomposed into
    separate project upstream.
  - d/control,d/neutron-plugin-openflow*: Dropped, decomposed into
    separate project upstream.
  - d/neutron-common.install: Add neutron-rootwrap-daemon and 
    neutron-keepalived-state-change binaries.
  - d/rules: Ignore neutron-hyperv-agent when installing; only for Windows.
  - d/neutron-plugin-cisco.install: Drop neutron-cisco-cfg-agent as
    decomposed into separate project upstream.
  - d/neutron-plugin-vmware.install: Drop neutron-check-nsx-config and
    neutron-nsx-manage as decomposed into separate project upstream.
  - d/control: Add dependency on python-neutron-fwaas to neutron-l3-agent.
* d/pydist-overrides: Add overrides for oslo packages.
* d/control: Fixup type in package description (LP: #1263539).
* d/p/fixup-driver-test-execution.patch: Cherry pick fix from upstream VCS
  to support unit test exection in out-of-tree vendor drivers.
* d/neutron-common.postinst: Allow general access to /etc/neutron but limit
  access to root/neutron to /etc/neutron/neutron.conf to support execution
  of unit tests in decomposed vendor drivers.
* d/control: Add dependency on python-neutron-fwaas to neutron-l3-agent
  package.

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neutron/plugins/ofagent/agent/ofswitch.py
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# Copyright (C) 2014 VA Linux Systems Japan K.K.
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# Copyright (C) 2014 YAMAMOTO Takashi <yamamoto at valinux co jp>
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# All Rights Reserved.
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#
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#    Licensed under the Apache License, Version 2.0 (the "License"); you may
6
 
#    not use this file except in compliance with the License. You may obtain
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#    a copy of the License at
8
 
#
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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, WITHOUT
13
 
#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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#    License for the specific language governing permissions and limitations
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#    under the License.
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from ryu.app.ofctl import api as ofctl_api
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class OpenFlowSwitch(object):
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    def __init__(self, *args, **kwargs):
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        super(OpenFlowSwitch, self).__init__(*args, **kwargs)
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        self._dp = None
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        # logically app doesn't belong here.  just for convenience.
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        self._app = None
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    def set_dp(self, dp):
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        self._dp = dp
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    def set_app(self, app):
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        self._app = app
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    def _get_dp(self):
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        """a convenient method for openflow message composers"""
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        dp = self._dp
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        return (dp, dp.ofproto, dp.ofproto_parser)
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    def _send_msg(self, msg):
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        return ofctl_api.send_msg(self._app, msg)
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    def delete_flows(self, table_id=None, strict=False, priority=0,
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                     match=None, **match_kwargs):
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        (dp, ofp, ofpp) = self._get_dp()
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        if table_id is None:
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            table_id = ofp.OFPTT_ALL
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        if match is None:
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            match = ofpp.OFPMatch(**match_kwargs)
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        if strict:
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            cmd = ofp.OFPFC_DELETE_STRICT
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        else:
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            cmd = ofp.OFPFC_DELETE
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        msg = ofpp.OFPFlowMod(dp,
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                              command=cmd,
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                              table_id=table_id,
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                              match=match,
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                              priority=priority,
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                              out_group=ofp.OFPG_ANY,
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                              out_port=ofp.OFPP_ANY)
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        self._send_msg(msg)
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    def install_default_drop(self, table_id):
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        (dp, _ofp, ofpp) = self._get_dp()
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        msg = ofpp.OFPFlowMod(dp,
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                              table_id=table_id,
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                              priority=0)
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        self._send_msg(msg)
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    def install_default_goto(self, table_id, dest_table_id):
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        (dp, _ofp, ofpp) = self._get_dp()
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        instructions = [ofpp.OFPInstructionGotoTable(table_id=dest_table_id)]
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        msg = ofpp.OFPFlowMod(dp,
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                              table_id=table_id,
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                              priority=0,
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                              instructions=instructions)
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        self._send_msg(msg)
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    def install_default_goto_next(self, table_id):
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        self.install_default_goto(table_id, table_id + 1)