144 lines
4.8 KiB
Python
144 lines
4.8 KiB
Python
# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2013 Isaku Yamahata <yamahata 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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"""
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Usage:
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PYTHONPATH=. ./bin/ryu-manager --verbose \
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ryu.topology.switches \
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ryu.services.protocols.vrrp.dumper \
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tests.integrated.test_vrrp_multi
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ryu.services.protocols.vrrp.dumper is optional.
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+---+ ----------------
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/--|OVS|<--veth-->| |
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Ryu +---+ | linux bridge |<--veth--> command to generate packets
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\--|OVS|<--veth-->| |
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+---+ ----------------
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configure OVSs to connect ryu
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example
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# brctl addbr b0
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# ip link add veth0-ovs type veth peer name veth0-br
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# ip link add veth1-ovs type veth peer name veth1-br
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# brctl addif b0 veth0-br
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# brctl addif b0 veth1-br
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# brctl show
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bridge name bridge id STP enabled interfaces
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b0 8000.6642e5822497 no veth0-br
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veth1-br
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ovs-system 0000.122038293b55 no
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# ovs-vsctl add-br s0
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# ovs-vsctl add-port s0 veth0-ovs
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# ovs-vsctl add-br s1
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# ovs-vsctl add-port s1 veth1-ovs
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# ovs-vsctl set-controller s0 tcp:127.0.0.1:6633
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# ovs-vsctl set bridge s0 protocols='[OpenFlow12]'
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# ovs-vsctl set-controller s1 tcp:127.0.0.1:6633
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# ovs-vsctl set bridge s1 protocols='[OpenFlow12]'
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# ovs-vsctl show
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20c2a046-ae7e-4453-a576-11034db24985
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Manager "ptcp:6634"
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Bridge "s0"
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Controller "tcp:127.0.0.1:6633"
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is_connected: true
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Port "veth0-ovs"
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Interface "veth0-ovs"
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Port "s0"
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Interface "s0"
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type: internal
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Bridge "s1"
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Controller "tcp:127.0.0.1:6633"
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is_connected: true
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Port "veth1-ovs"
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Interface "veth1-ovs"
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Port "s1"
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Interface "s1"
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type: internal
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ovs_version: "1.9.90"
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# ip link veth0-br set up
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# ip link veth0-ovs set up
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# ip link veth1-br set up
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# ip link veth1-ovs set up
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# ip link b0 set up
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"""
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from ryu.base import app_manager
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from ryu.controller import handler
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from ryu.lib import dpid as lib_dpid
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from ryu.lib import hub
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from ryu.lib.packet import vrrp
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from ryu.services.protocols.vrrp import api as vrrp_api
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from ryu.services.protocols.vrrp import event as vrrp_event
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from ryu.services.protocols.vrrp import monitor_openflow
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from ryu.topology import event as topo_event
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from ryu.topology import api as topo_api
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from . import vrrp_common
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class VRRPConfigApp(vrrp_common.VRRPCommon):
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_IFNAME0 = 0
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_IFNAME1 = 1
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def __init__(self, *args, **kwargs):
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super(VRRPConfigApp, self).__init__(*args, **kwargs)
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self.start_main = False
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@handler.set_ev_cls(topo_event.EventSwitchEnter)
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def _switch_enter_handler(self, ev):
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if self.start_main:
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return
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switches = topo_api.get_switch(self)
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if len(switches) < 2:
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return
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self.start_main = True
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app_mgr = app_manager.AppManager.get_instance()
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self.logger.debug('%s', app_mgr.applications)
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self.switches = app_mgr.applications['switches']
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hub.spawn(self._main)
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def _configure_vrrp_router(self, vrrp_version, priority,
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ip_addr, switch_index, vrid):
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switches = self.switches
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self.logger.debug('%s', switches.dps)
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dpid = sorted(switches.dps.keys())[switch_index]
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self.logger.debug('%s', lib_dpid.dpid_to_str(dpid))
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self.logger.debug('%s', switches.port_state)
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# hack: use the smallest port no to avoid picking OVS local port
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port_no = sorted(switches.port_state[dpid].keys())[0]
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self.logger.debug('%d', port_no)
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port = switches.port_state[dpid][port_no]
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self.logger.debug('%s', port)
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mac = port.hw_addr
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self.logger.debug('%s', mac)
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interface = vrrp_event.VRRPInterfaceOpenFlow(
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mac, ip_addr, None, dpid, port_no)
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self.logger.debug('%s', interface)
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config = vrrp_event.VRRPConfig(
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version=vrrp_version, vrid=vrid, priority=priority,
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ip_addresses=[ip_addr])
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self.logger.debug('%s', config)
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rep = vrrp_api.vrrp_config(self, interface, config)
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self.logger.debug('%s', rep)
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return rep
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