blob: 2e85e90bb4aa4c4c0e3613310d9b677267c887b4 [file] [log] [blame]
# Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from core.models import AddressPool
import os
from django.db.models import *
from xos.exceptions import *
from models_decl import *
def ip_to_mac(ip):
(a, b, c, d) = ip.split('.')
return "02:42:%02x:%02x:%02x:%02x" % (int(a), int(b), int(c), int(d))
class AddressManagerService (AddressManagerService_decl):
class Meta:
proxy = True
def get_gateways(self):
gateways = []
aps = self.addresspools.all()
for ap in aps:
gateways.append({"gateway_ip": ap.gateway_ip, "gateway_mac": ap.gateway_mac})
return gateways
def get_address_pool(self, name):
ap = AddressPool.objects.filter(name=name, service=self)
if not ap:
raise Exception("Address Manager unable to find addresspool %s" % name)
return ap[0]
# TODO remove me once the old TOSCA engine is gone
def get_service_instance(self, **kwargs):
address_pool_name = kwargs.pop("address_pool_name")
ap = self.get_address_pool(address_pool_name)
# ip = ap.get_address()
# if not ip:
# raise Exception("AddressPool '%s' has run out of addresses." % ap.name)
t = AddressManagerServiceInstance(owner=self, **kwargs)
# NOTE this will be added updated on save
# t.public_ip = ip
# t.public_mac = ip_to_mac(ip)
t.address_pool_id = ap.id
t.save()
return t
class AddressManagerServiceInstance (AddressManagerServiceInstance_decl):
class Meta:
proxy = True
@property
def gateway_ip(self):
if not self.address_pool:
return None
return self.address_pool.gateway_ip
@property
def gateway_mac(self):
if not self.address_pool:
return None
return self.address_pool.gateway_mac
@property
def cidr(self):
if not self.address_pool:
return None
return self.address_pool.cidr
@property
def netbits(self):
# return number of bits in the network portion of the cidr
if self.cidr:
parts = self.cidr.split("/")
if len(parts) == 2:
return int(parts[1].strip())
return None
def cleanup_addresspool(self):
if self.address_pool:
ap = self.address_pool
if ap:
ap.put_address(self.public_ip)
self.public_ip = None
def delete(self, *args, **kwargs):
self.cleanup_addresspool()
super(AddressManagerServiceInstance, self).delete(*args, **kwargs)
def save(self, *args, **kwds):
"""
We need to get an ip from addresspool when we create this model
"""
if not self.id and not self.public_ip:
self.public_ip = self.address_pool.get_address()
self.public_mac = ip_to_mac(self.public_ip)
super(AddressManagerServiceInstance, self).save(*args, **kwds)