91 lines
2.7 KiB
Python
Executable File
91 lines
2.7 KiB
Python
Executable File
#!/usr/bin/env python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2010 United States Government as represented by the
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# Administrator of the National Aeronautics and Space Administration.
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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
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# 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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"""
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dhcpleasor.py
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Handle lease database updates from DHCP servers.
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"""
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import sys
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import os
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import logging
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sys.path.append(os.path.abspath(os.path.join(__file__, "../../")))
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logging.debug(sys.path)
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import getopt
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from os import environ
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from nova.compute import linux_net
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from nova.compute import network
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from nova import rpc
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from nova import flags
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FLAGS = flags.FLAGS
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def add_lease(mac, ip, hostname, interface):
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if FLAGS.fake_rabbit:
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network.lease_ip(ip)
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else:
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rpc.cast(FLAGS.cloud_topic, {"method": "lease_ip",
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"args" : {"address": ip}})
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def old_lease(mac, ip, hostname, interface):
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logging.debug("Adopted old lease or got a change of mac/hostname")
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def del_lease(mac, ip, hostname, interface):
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if FLAGS.fake_rabbit:
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network.release_ip(ip)
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else:
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rpc.cast(FLAGS.cloud_topic, {"method": "release_ip",
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"args" : {"address": ip}})
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def init_leases(interface):
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net = network.get_network_by_interface(interface)
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res = ""
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for host_name in net.hosts:
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res += "%s\n" % linux_net.hostDHCP(net, host_name, net.hosts[host_name])
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return res
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def main(argv=None):
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if argv is None:
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argv = sys.argv
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interface = environ.get('DNSMASQ_INTERFACE', 'br0')
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if int(environ.get('TESTING', '0')):
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FLAGS.fake_rabbit = True
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FLAGS.redis_db = 8
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FLAGS.network_size = 32
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FLAGS.fake_libvirt=True
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FLAGS.fake_network=True
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FLAGS.fake_users = True
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action = argv[1]
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if action in ['add','del','old']:
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mac = argv[2]
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ip = argv[3]
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hostname = argv[4]
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logging.debug("Called %s for mac %s with ip %s and hostname %s on interface %s" % (action, mac, ip, hostname, interface))
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globals()[action+'_lease'](mac, ip, hostname, interface)
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else:
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print init_leases(interface)
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exit(0)
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if __name__ == "__main__":
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sys.exit(main())
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