migrate vrouter service from XOS repo:
diff --git a/xos/models.py b/xos/models.py
new file mode 100644
index 0000000..d302b13
--- /dev/null
+++ b/xos/models.py
@@ -0,0 +1,143 @@
+from django.db import models
+from core.models import Service, PlCoreBase, Slice, Instance, Tenant, TenantWithContainer, Node, Image, User, Flavor, Subscriber, NetworkParameter, NetworkParameterType, Port, AddressPool
+from core.models.plcorebase import StrippedCharField
+import os
+from django.db import models, transaction
+from django.forms.models import model_to_dict
+from django.db.models import Q
+from operator import itemgetter, attrgetter, methodcaller
+from core.models import Tag
+from core.models.service import LeastLoadedNodeScheduler
+import traceback
+from xos.exceptions import *
+from xos.config import Config
+
+class ConfigurationError(Exception):
+ pass
+
+
+VROUTER_KIND = "vROUTER"
+
+# NOTE: don't change VROUTER_KIND unless you also change the reference to it
+# in tosca/resources/network.py
+
+CORD_USE_VTN = getattr(Config(), "networking_use_vtn", False)
+
+class VRouterService(Service):
+ KIND = VROUTER_KIND
+
+ class Meta:
+ app_label = "vrouter"
+ verbose_name = "vRouter Service"
+ proxy = True
+
+ def ip_to_mac(self, ip):
+ (a, b, c, d) = ip.split('.')
+ return "02:42:%02x:%02x:%02x:%02x" % (int(a), int(b), int(c), int(d))
+
+ 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("vRouter unable to find addresspool %s" % name)
+ return ap[0]
+
+ def get_tenant(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 = VRouterTenant(provider_service=self, **kwargs)
+ t.public_ip = ip
+ t.public_mac = self.ip_to_mac(ip)
+ t.address_pool_id = ap.id
+ t.save()
+
+ return t
+
+#VRouterService.setup_simple_attributes()
+
+class VRouterTenant(Tenant):
+ class Meta:
+ proxy = True
+
+ KIND = VROUTER_KIND
+
+ simple_attributes = ( ("public_ip", None),
+ ("public_mac", None),
+ ("address_pool_id", None),
+ )
+
+ @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
+
+ @property
+ def address_pool(self):
+ if getattr(self, "cached_address_pool", None):
+ return self.cached_address_pool
+ if not self.address_pool_id:
+ return None
+ aps=AddressPool.objects.filter(id=self.address_pool_id)
+ if not aps:
+ return None
+ ap=aps[0]
+ self.cached_address_pool = ap
+ return ap
+
+ @address_pool.setter
+ def address_pool(self, value):
+ if value:
+ value = value.id
+ if (value != self.get_attribute("address_pool_id", None)):
+ self.cached_address_pool=None
+ self.set_attribute("address_pool_id", value)
+
+ def cleanup_addresspool(self):
+ if self.address_pool_id:
+ ap = AddressPool.objects.filter(id=self.address_pool_id)
+ if ap:
+ ap[0].put_address(self.public_ip)
+ self.public_ip = None
+
+ def delete(self, *args, **kwargs):
+ self.cleanup_addresspool()
+ super(VRouterTenant, self).delete(*args, **kwargs)
+
+VRouterTenant.setup_simple_attributes()
+