4523b1b64c
rename options. (s/_/-/) according to Isaku Yamahata, this makes us look similar to openstack. caveat: no backward compat is provided. you need to update both of config files and cli options. Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
259 lines
8.9 KiB
Python
259 lines
8.9 KiB
Python
# Copyright (C) 2012 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2012 Isaku Yamahata <yamahata at private email ne 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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slimmed down version of OVSBridge in quantum agent
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"""
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import functools
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from oslo.config import cfg
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import logging
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import ryu.exception as ryu_exc
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import ryu.lib.dpid as dpid_lib
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import ryu.lib.ovs.vsctl as ovs_vsctl
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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CONF.register_opts([
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cfg.IntOpt('ovsdb-timeout', default=2, help='ovsdb timeout')
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])
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class OVSBridgeNotFound(ryu_exc.RyuException):
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message = 'no bridge for datapath_id %(datapath_id)s'
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class VifPort(object):
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def __init__(self, port_name, ofport, vif_id, vif_mac, switch):
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super(VifPort, self).__init__()
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self.port_name = port_name
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self.ofport = ofport
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self.vif_id = vif_id
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self.vif_mac = vif_mac
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self.switch = switch
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def __str__(self):
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return ('iface-id=%s, '
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'vif_mac=%s, '
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'port_name=%s, '
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'ofport=%d, '
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'bridge_name=%s' % (self.vif_id,
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self.vif_mac,
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self.port_name,
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self.ofport,
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self.switch.br_name))
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class TunnelPort(object):
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def __init__(self, port_name, ofport, tunnel_type, local_ip, remote_ip):
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super(TunnelPort, self).__init__()
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self.port_name = port_name
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self.ofport = ofport
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self.tunnel_type = tunnel_type
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self.local_ip = local_ip
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self.remote_ip = remote_ip
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def __eq__(self, other):
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return (self.port_name == other.port_name and
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self.ofport == other.ofport and
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self.tunnel_type == other.tunnel_type and
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self.local_ip == other.local_ip and
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self.remote_ip == other.remote_ip)
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def __str__(self):
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return ('port_name=%s, '
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'ofport=%s, '
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'type=%s, '
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'local_ip=%s, '
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'remote_ip=%s' % (self.port_name,
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self.ofport,
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self.tunnel_type,
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self.local_ip,
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self.remote_ip))
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class OVSBridge(object):
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def __init__(self, datapath_id, ovsdb_addr, timeout=None, exception=None):
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super(OVSBridge, self).__init__()
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self.datapath_id = datapath_id
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self.vsctl = ovs_vsctl.VSCtl(ovsdb_addr)
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self.timeout = timeout or CONF.ovsdb_timeout
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self.exception = exception
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self.br_name = None
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def run_command(self, commands):
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self.vsctl.run_command(commands, self.timeout, self.exception)
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def init(self):
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if self.br_name is None:
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self.br_name = self._get_bridge_name()
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def _get_bridge_name(self):
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""" get Bridge name of a given 'datapath_id' """
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command = ovs_vsctl.VSCtlCommand(
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'find',
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('Bridge',
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'datapath_id=%s' % dpid_lib.dpid_to_str(self.datapath_id)))
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self.run_command([command])
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result = command.result
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if len(result) == 0 or len(result) > 1:
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raise OVSBridgeNotFound(
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datapath_id=dpid_lib.dpid_to_str(self.datapath_id))
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return result[0].name
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def get_controller(self):
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command = ovs_vsctl.VSCtlCommand('get-controller', [self.br_name])
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self.run_command([command])
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return command.result[0]
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def set_controller(self, controllers):
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command = ovs_vsctl.VSCtlCommand('set-controller', [self.br_name])
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command.args.extend(controllers)
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self.run_command([command])
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def del_controller(self):
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command = ovs_vsctl.VSCtlCommand('del-controller', [self.br_name])
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self.run_command([command])
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def set_db_attribute(self, table_name, record, column, value):
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command = ovs_vsctl.VSCtlCommand(
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'set', (table_name, record, '%s=%s' % (column, value)))
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self.run_command([command])
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def clear_db_attribute(self, table_name, record, column):
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command = ovs_vsctl.VSCtlCommand('clear', (table_name, record, column))
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self.run_command([command])
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def db_get_val(self, table, record, column):
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command = ovs_vsctl.VSCtlCommand('get', (table, record, column))
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self.run_command([command])
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assert len(command.result) == 1
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return command.result[0]
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def db_get_map(self, table, record, column):
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val = self.db_get_val(table, record, column)
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assert type(val) == dict
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return val
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def get_datapath_id(self):
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return self.db_get_val('Bridge', self.br_name, 'datapath_id')
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def delete_port(self, port_name):
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command = ovs_vsctl.VSCtlCommand(
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'del-port', (self.br_name, port_name), ('--if-exists'))
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self.run_command([command])
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def get_ofport(self, port_name):
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ofport_list = self.db_get_val('Interface', port_name, 'ofport')
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assert len(ofport_list) == 1
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return int(ofport_list[0])
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def get_port_name_list(self):
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command = ovs_vsctl.VSCtlCommand('list-ports', (self.br_name, ))
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self.run_command([command])
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return command.result
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def add_tunnel_port(self, name, tunnel_type, local_ip, remote_ip,
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key=None):
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options = 'local_ip=%(local_ip)s,remote_ip=%(remote_ip)s' % locals()
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if key:
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options += ',key=%(key)s' % locals()
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command_add = ovs_vsctl.VSCtlCommand('add-port', (self.br_name, name))
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command_set = ovs_vsctl.VSCtlCommand(
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'set', ('Interface', name,
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'type=%s' % tunnel_type, 'options=%s' % options))
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self.run_command([command_add, command_set])
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def add_gre_port(self, name, local_ip, remote_ip, key=None):
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self.add_tunnel_port(name, 'gre', local_ip, remote_ip, key=key)
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def del_port(self, port_name):
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command = ovs_vsctl.VSCtlCommand('del-port', (self.br_name, port_name))
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self.run_command([command])
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def _get_ports(self, get_port):
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ports = []
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port_names = self.get_port_name_list()
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for name in port_names:
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if self.get_ofport(name) < 0:
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continue
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port = get_port(name)
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if port:
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ports.append(port)
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return ports
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def _vifport(self, name, external_ids):
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ofport = self.get_ofport(name)
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return VifPort(name, ofport, external_ids['iface-id'],
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external_ids['attached-mac'], self)
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def _get_vif_port(self, name):
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external_ids = self.db_get_map('Interface', name, 'external_ids')
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if 'iface-id' in external_ids and 'attached-mac' in external_ids:
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return self._vifport(name, external_ids)
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def get_vif_ports(self):
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'returns a VIF object for each VIF port'
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return self._get_ports(self._get_vif_port)
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def _get_external_port(self, name):
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# exclude vif ports
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external_ids = self.db_get_map('Interface', name, 'external_ids')
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if external_ids:
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return
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# exclude tunnel ports
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options = self.db_get_map('Interface', name, 'options')
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if 'remote_ip' in options:
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return
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ofport = self.get_ofport(name)
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return VifPort(name, ofport, None, None, self)
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def get_external_ports(self):
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return self._get_ports(self._get_external_port)
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def get_tunnel_port(self, name, tunnel_type='gre'):
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type_ = self.db_get_val('Interface', name, 'type')
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if type_ != tunnel_type:
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return
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options = self.db_get_map('Interface', name, 'options')
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if 'local_ip' in options and 'remote_ip' in options:
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ofport = self.get_ofport(name)
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return TunnelPort(name, ofport, tunnel_type,
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options['local_ip'], options['remote_ip'])
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def get_tunnel_ports(self, tunnel_type='gre'):
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get_tunnel_port = functools.partial(self.get_tunnel_port,
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tunnel_type=tunnel_type)
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return self._get_ports(get_tunnel_port)
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def get_quantum_ports(self, port_name):
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LOG.debug('port_name %s', port_name)
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command = ovs_vsctl.VSCtlCommand(
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'list-ifaces-verbose',
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[dpid_lib.dpid_to_str(self.datapath_id), port_name])
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self.run_command([command])
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if command.result:
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return command.result[0]
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return None
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