planetstack/core/models/network.py - xos - Gitiles

 import os
 import socket
 from django.db import models
 from core.models import PlCoreBase, Site, Slice, Sliver, Deployment
 from core.models import DeploymentLinkManager,DeploymentLinkDeletionManager
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.contenttypes import generic
 from django.core.exceptions import ValidationError

 # If true, then IP addresses will be allocated by the model. If false, then
 # we will assume the observer handles it.
 NO_OBSERVER=False

 def ParseNatList(ports):
     """ Support a list of ports in the format "protocol:port, protocol:port, ..."
         examples:
             tcp 123
             tcp 123:133
             tcp 123, tcp 124, tcp 125, udp 201, udp 202

         User can put either a "/" or a " " between protocol and ports
         Port ranges can be specified with "-" or ":"
     """
     nats = []
     if ports:
         parts = ports.split(",")
         for part in parts:
             part = part.strip()
             if "/" in part:
                 (protocol, ports) = part.split("/",1)
             elif " " in part:
                 (protocol, ports) = part.split(None,1)
             else:
                 raise TypeError('malformed port specifier %s, format example: "tcp 123, tcp 201:206, udp 333"' % part)

             protocol = protocol.strip()
             ports = ports.strip()

             if not (protocol in ["udp", "tcp"]):
                 raise ValueError('unknown protocol %s' % protocol)

             if "-" in ports:
                 (first, last) = ports.split("-")
                 first = int(first.strip())
                 last = int(last.strip())
                 portStr = "%d:%d" % (first, last)
             elif ":" in ports:
                 (first, last) = ports.split(":")
                 first = int(first.strip())
                 last = int(last.strip())
                 portStr = "%d:%d" % (first, last)
             else:
                 portStr = "%d" % int(ports)

             nats.append( {"l4_protocol": protocol, "l4_port": portStr} )

     return nats

 def ValidateNatList(ports):
     try:
         ParseNatList(ports)
     except Exception,e:
         raise ValidationError(str(e))

 class NetworkTemplate(PlCoreBase):
     VISIBILITY_CHOICES = (('public', 'public'), ('private', 'private'))
     TRANSLATION_CHOICES = (('none', 'none'), ('NAT', 'NAT'))
     TOPOLOGY_CHOICES = (('bigswitch', 'BigSwitch'), ('physical', 'Physical'), ('custom', 'Custom'))
     CONTROLLER_CHOICES = ((None, 'None'), ('onos', 'ONOS'), ('custom', 'Custom'))

     name = models.CharField(max_length=32)
     description = models.CharField(max_length=1024, blank=True, null=True)
     guaranteedBandwidth = models.IntegerField(default=0)
     visibility = models.CharField(max_length=30, choices=VISIBILITY_CHOICES, default="private")
     translation = models.CharField(max_length=30, choices=TRANSLATION_CHOICES, default="none")
     sharedNetworkName = models.CharField(max_length=30, blank=True, null=True)
     sharedNetworkId = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
     topologyKind = models.CharField(null=False, blank=False, max_length=30, choices=TOPOLOGY_CHOICES, default="BigSwitch")
     controllerKind = models.CharField(null=True, blank=True, max_length=30, choices=CONTROLLER_CHOICES, default=None)

     def __unicode__(self):  return u'%s' % (self.name)

 class Network(PlCoreBase):
     name = models.CharField(max_length=32)
     template = models.ForeignKey(NetworkTemplate)
     subnet = models.CharField(max_length=32, blank=True)
     ports = models.CharField(max_length=1024, blank=True, null=True, validators=[ValidateNatList])
     labels = models.CharField(max_length=1024, blank=True, null=True)
     owner = models.ForeignKey(Slice, related_name="ownedNetworks", help_text="Slice that owns control of this Network")

     guaranteedBandwidth = models.IntegerField(default=0)
     permitAllSlices = models.BooleanField(default=False)
     permittedSlices = models.ManyToManyField(Slice, blank=True, related_name="availableNetworks")
     slices = models.ManyToManyField(Slice, blank=True, related_name="networks", through="NetworkSlice")
     slivers = models.ManyToManyField(Sliver, blank=True, related_name="networks", through="NetworkSliver")

     topologyParameters = models.TextField(null=True, blank=True)
     controllerParameters = models.TextField(null=True, blank=True)

     # for observer/manager
     network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
     router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
     subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")

     def __unicode__(self):  return u'%s' % (self.name)

     def save(self, *args, **kwds):
         if (not self.subnet) and (NO_OBSERVER):
             from util.network_subnet_allocator import find_unused_subnet
             self.subnet = find_unused_subnet(existing_subnets=[x.subnet for x in Network.objects.all()])
         super(Network, self).save(*args, **kwds)

     def can_update(self, user):
         return self.owner.can_update(user)

     @property
     def nat_list(self):
         return ParseNatList(self.ports)

     @staticmethod
     def select_by_user(user):
         if user.is_admin:
             qs = Network.objects.all()
         else:
             slices = Slice.select_by_user(user)
             #slice_ids = [s.id for s in Slice.select_by_user(user)]
             qs = Network.objects.filter(owner__in=slices)
         return qs

 class NetworkDeployments(PlCoreBase):
     objects = DeploymentLinkManager()
     deleted_objects = DeploymentLinkDeletionManager()

     # Stores the openstack ids at various deployments
     network = models.ForeignKey(Network, related_name='networkdeployments')
     deployment = models.ForeignKey(Deployment, related_name='networkdeployments')
     net_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
     router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
     subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
     subnet = models.CharField(max_length=32, blank=True)

     def can_update(self, user):
         return user.is_admin

     @staticmethod
     def select_by_user(user):
         if user.is_admin:
             qs = NetworkDeployments.objects.all()
         else:
             slices = Slice.select_by_user(user)
             networks = Network.objects.filter(owner__in=slices)
             qs = NetworkDeployments.objects.filter(network__in=networks)
         return qs

 class NetworkSlice(PlCoreBase):
     # This object exists solely so we can implement the permission check when
     # adding slices to networks. It adds no additional fields to the relation.

     network = models.ForeignKey(Network,related_name='networkslices')
     slice = models.ForeignKey(Slice,related_name='networkslices')

     def save(self, *args, **kwds):
         slice = self.slice
         if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
             # to add a sliver to the network, then one of the following must be true:
             #   1) sliver's slice is in network's permittedSlices list,
             #   2) sliver's slice is network's owner, or
             #   3) network's permitAllSlices is true
             raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))

         super(NetworkSlice, self).save(*args, **kwds)

     def __unicode__(self):  return u'%s-%s' % (self.network.name, self.slice.name)

     def can_update(self, user):
         return self.slice.can_update(user)

     @staticmethod
     def select_by_user(user):
         if user.is_admin:
             qs = NetworkSlice.objects.all()
         else:
             slice_ids = [s.id for s in Slice.select_by_user(user)]
             qs = NetworkSlice.objects.filter(id__in=slice_ids)
         return qs

 class NetworkSliver(PlCoreBase):
     network = models.ForeignKey(Network,related_name='networkslivers')
     sliver = models.ForeignKey(Sliver,related_name='networkslivers')
     ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
     port_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum port id")

     def save(self, *args, **kwds):
         slice = self.sliver.slice
         if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
             # to add a sliver to the network, then one of the following must be true:
             #   1) sliver's slice is in network's permittedSlices list,
             #   2) sliver's slice is network's owner, or
             #   3) network's permitAllSlices is true
             raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))

         if (not self.ip) and (NO_OBSERVER):
             from util.network_subnet_allocator import find_unused_address
             self.ip = find_unused_address(self.network.subnet,
                                           [x.ip for x in self.network.networksliver_set.all()])
         super(NetworkSliver, self).save(*args, **kwds)

     def __unicode__(self):  return u'%s-%s' % (self.network.name, self.sliver.instance_name)

     def can_update(self, user):
         return self.sliver.can_update(user)

     @staticmethod
     def select_by_user(user):
         if user.is_admin:
             qs = NetworkSliver.objects.all()
         else:
             sliver_ids = [s.id for s in NetworkSliver.select_by_user(user)]
             qs = NetworkSliver.objects.filter(id__in=sliver_ids)
         return qs

 class Router(PlCoreBase):
     name = models.CharField(max_length=32)
     owner = models.ForeignKey(Slice, related_name="routers")
     permittedNetworks = models.ManyToManyField(Network, blank=True, related_name="availableRouters")
     networks = models.ManyToManyField(Network, blank=True, related_name="routers")

     def __unicode__(self):  return u'%s' % (self.name)

 class NetworkParameterType(PlCoreBase):
     name = models.SlugField(help_text="The name of this parameter", max_length=128)
     description = models.CharField(max_length=1024)

     def __unicode__(self):  return u'%s' % (self.name)

 class NetworkParameter(PlCoreBase):
     parameter = models.ForeignKey(NetworkParameterType, related_name="networkparameters", help_text="The type of the parameter")
     value = models.CharField(help_text="The value of this parameter", max_length=1024)

     # The required fields to do a ObjectType lookup, and object_id assignment
     content_type = models.ForeignKey(ContentType)
     object_id = models.PositiveIntegerField()
     content_object = generic.GenericForeignKey('content_type', 'object_id')

     def __unicode__(self):
         return self.parameter.name
	import os
	import socket
	from django.db import models
	from core.models import PlCoreBase, Site, Slice, Sliver, Deployment
	from core.models import DeploymentLinkManager,DeploymentLinkDeletionManager
	from django.contrib.contenttypes.models import ContentType
	from django.contrib.contenttypes import generic
	from django.core.exceptions import ValidationError

	# If true, then IP addresses will be allocated by the model. If false, then
	# we will assume the observer handles it.
	NO_OBSERVER=False

	def ParseNatList(ports):
	""" Support a list of ports in the format "protocol:port, protocol:port, ..."
	examples:
	tcp 123
	tcp 123:133
	tcp 123, tcp 124, tcp 125, udp 201, udp 202

	User can put either a "/" or a " " between protocol and ports
	Port ranges can be specified with "-" or ":"
	"""
	nats = []
	if ports:
	parts = ports.split(",")
	for part in parts:
	part = part.strip()
	if "/" in part:
	(protocol, ports) = part.split("/",1)
	elif " " in part:
	(protocol, ports) = part.split(None,1)
	else:
	raise TypeError('malformed port specifier %s, format example: "tcp 123, tcp 201:206, udp 333"' % part)

	protocol = protocol.strip()
	ports = ports.strip()

	if not (protocol in ["udp", "tcp"]):
	raise ValueError('unknown protocol %s' % protocol)

	if "-" in ports:
	(first, last) = ports.split("-")
	first = int(first.strip())
	last = int(last.strip())
	portStr = "%d:%d" % (first, last)
	elif ":" in ports:
	(first, last) = ports.split(":")
	first = int(first.strip())
	last = int(last.strip())
	portStr = "%d:%d" % (first, last)
	else:
	portStr = "%d" % int(ports)

	nats.append( {"l4_protocol": protocol, "l4_port": portStr} )

	return nats

	def ValidateNatList(ports):
	try:
	ParseNatList(ports)
	except Exception,e:
	raise ValidationError(str(e))

	class NetworkTemplate(PlCoreBase):
	VISIBILITY_CHOICES = (('public', 'public'), ('private', 'private'))
	TRANSLATION_CHOICES = (('none', 'none'), ('NAT', 'NAT'))
	TOPOLOGY_CHOICES = (('bigswitch', 'BigSwitch'), ('physical', 'Physical'), ('custom', 'Custom'))
	CONTROLLER_CHOICES = ((None, 'None'), ('onos', 'ONOS'), ('custom', 'Custom'))

	name = models.CharField(max_length=32)
	description = models.CharField(max_length=1024, blank=True, null=True)
	guaranteedBandwidth = models.IntegerField(default=0)
	visibility = models.CharField(max_length=30, choices=VISIBILITY_CHOICES, default="private")
	translation = models.CharField(max_length=30, choices=TRANSLATION_CHOICES, default="none")
	sharedNetworkName = models.CharField(max_length=30, blank=True, null=True)
	sharedNetworkId = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
	topologyKind = models.CharField(null=False, blank=False, max_length=30, choices=TOPOLOGY_CHOICES, default="BigSwitch")
	controllerKind = models.CharField(null=True, blank=True, max_length=30, choices=CONTROLLER_CHOICES, default=None)

	def __unicode__(self): return u'%s' % (self.name)

	class Network(PlCoreBase):
	name = models.CharField(max_length=32)
	template = models.ForeignKey(NetworkTemplate)
	subnet = models.CharField(max_length=32, blank=True)
	ports = models.CharField(max_length=1024, blank=True, null=True, validators=[ValidateNatList])
	labels = models.CharField(max_length=1024, blank=True, null=True)
	owner = models.ForeignKey(Slice, related_name="ownedNetworks", help_text="Slice that owns control of this Network")

	guaranteedBandwidth = models.IntegerField(default=0)
	permitAllSlices = models.BooleanField(default=False)
	permittedSlices = models.ManyToManyField(Slice, blank=True, related_name="availableNetworks")
	slices = models.ManyToManyField(Slice, blank=True, related_name="networks", through="NetworkSlice")
	slivers = models.ManyToManyField(Sliver, blank=True, related_name="networks", through="NetworkSliver")

	topologyParameters = models.TextField(null=True, blank=True)
	controllerParameters = models.TextField(null=True, blank=True)

	# for observer/manager
	network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
	router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
	subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")

	def __unicode__(self): return u'%s' % (self.name)

	def save(self, args, *kwds):
	if (not self.subnet) and (NO_OBSERVER):
	from util.network_subnet_allocator import find_unused_subnet
	self.subnet = find_unused_subnet(existing_subnets=[x.subnet for x in Network.objects.all()])
	super(Network, self).save(args, *kwds)

	def can_update(self, user):
	return self.owner.can_update(user)

	@property
	def nat_list(self):
	return ParseNatList(self.ports)

	@staticmethod
	def select_by_user(user):
	if user.is_admin:
	qs = Network.objects.all()
	else:
	slices = Slice.select_by_user(user)
	#slice_ids = [s.id for s in Slice.select_by_user(user)]
	qs = Network.objects.filter(owner__in=slices)
	return qs

	class NetworkDeployments(PlCoreBase):
	objects = DeploymentLinkManager()
	deleted_objects = DeploymentLinkDeletionManager()

	# Stores the openstack ids at various deployments
	network = models.ForeignKey(Network, related_name='networkdeployments')
	deployment = models.ForeignKey(Deployment, related_name='networkdeployments')
	net_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
	router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
	subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
	subnet = models.CharField(max_length=32, blank=True)

	def can_update(self, user):
	return user.is_admin

	@staticmethod
	def select_by_user(user):
	if user.is_admin:
	qs = NetworkDeployments.objects.all()
	else:
	slices = Slice.select_by_user(user)
	networks = Network.objects.filter(owner__in=slices)
	qs = NetworkDeployments.objects.filter(network__in=networks)
	return qs

	class NetworkSlice(PlCoreBase):
	# This object exists solely so we can implement the permission check when
	# adding slices to networks. It adds no additional fields to the relation.

	network = models.ForeignKey(Network,related_name='networkslices')
	slice = models.ForeignKey(Slice,related_name='networkslices')

	def save(self, args, *kwds):
	slice = self.slice
	if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
	# to add a sliver to the network, then one of the following must be true:
	# 1) sliver's slice is in network's permittedSlices list,
	# 2) sliver's slice is network's owner, or
	# 3) network's permitAllSlices is true
	raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))

	super(NetworkSlice, self).save(args, *kwds)

	def __unicode__(self): return u'%s-%s' % (self.network.name, self.slice.name)

	def can_update(self, user):
	return self.slice.can_update(user)

	@staticmethod
	def select_by_user(user):
	if user.is_admin:
	qs = NetworkSlice.objects.all()
	else:
	slice_ids = [s.id for s in Slice.select_by_user(user)]
	qs = NetworkSlice.objects.filter(id__in=slice_ids)
	return qs

	class NetworkSliver(PlCoreBase):
	network = models.ForeignKey(Network,related_name='networkslivers')
	sliver = models.ForeignKey(Sliver,related_name='networkslivers')
	ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
	port_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum port id")

	def save(self, args, *kwds):
	slice = self.sliver.slice
	if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
	# to add a sliver to the network, then one of the following must be true:
	# 1) sliver's slice is in network's permittedSlices list,
	# 2) sliver's slice is network's owner, or
	# 3) network's permitAllSlices is true
	raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))

	if (not self.ip) and (NO_OBSERVER):
	from util.network_subnet_allocator import find_unused_address
	self.ip = find_unused_address(self.network.subnet,
	[x.ip for x in self.network.networksliver_set.all()])
	super(NetworkSliver, self).save(args, *kwds)

	def __unicode__(self): return u'%s-%s' % (self.network.name, self.sliver.instance_name)

	def can_update(self, user):
	return self.sliver.can_update(user)

	@staticmethod
	def select_by_user(user):
	if user.is_admin:
	qs = NetworkSliver.objects.all()
	else:
	sliver_ids = [s.id for s in NetworkSliver.select_by_user(user)]
	qs = NetworkSliver.objects.filter(id__in=sliver_ids)
	return qs

	class Router(PlCoreBase):
	name = models.CharField(max_length=32)
	owner = models.ForeignKey(Slice, related_name="routers")
	permittedNetworks = models.ManyToManyField(Network, blank=True, related_name="availableRouters")
	networks = models.ManyToManyField(Network, blank=True, related_name="routers")

	def __unicode__(self): return u'%s' % (self.name)

	class NetworkParameterType(PlCoreBase):
	name = models.SlugField(help_text="The name of this parameter", max_length=128)
	description = models.CharField(max_length=1024)

	def __unicode__(self): return u'%s' % (self.name)

	class NetworkParameter(PlCoreBase):
	parameter = models.ForeignKey(NetworkParameterType, related_name="networkparameters", help_text="The type of the parameter")
	value = models.CharField(help_text="The value of this parameter", max_length=1024)

	# The required fields to do a ObjectType lookup, and object_id assignment
	content_type = models.ForeignKey(ContentType)
	object_id = models.PositiveIntegerField()
	content_object = generic.GenericForeignKey('content_type', 'object_id')

	def __unicode__(self):
	return self.parameter.name