58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
# Copyright (C) 2011 Nippon Telegraph and Telephone Corporation.
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# Copyright (C) 2011 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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import logging
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from os_ken.lib.mac import haddr_to_str
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LOG = logging.getLogger('os_ken.controller.mac_to_port')
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class MacToPortTable(object):
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"""MAC addr <-> (dpid, port name)"""
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def __init__(self):
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super(MacToPortTable, self).__init__()
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self.mac_to_port = {}
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def dpid_add(self, dpid):
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LOG.debug('dpid_add: 0x%016x', dpid)
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self.mac_to_port.setdefault(dpid, {})
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def port_add(self, dpid, port, mac):
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"""
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:returns: old port if learned. (this may be = port)
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None otherwise
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"""
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old_port = self.mac_to_port[dpid].get(mac, None)
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self.mac_to_port[dpid][mac] = port
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if old_port is not None and old_port != port:
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LOG.debug('port_add: 0x%016x 0x%04x %s',
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dpid, port, haddr_to_str(mac))
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return old_port
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def port_get(self, dpid, mac):
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# LOG.debug('dpid 0x%016x mac %s', dpid, haddr_to_str(mac))
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return self.mac_to_port[dpid].get(mac)
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def mac_list(self, dpid, port):
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return [mac for (mac, port_) in self.mac_to_port.get(dpid).items()
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if port_ == port]
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def mac_del(self, dpid, mac):
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del self.mac_to_port[dpid][mac]
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