4 from django.db import models
5 from core.models import PlCoreBase, Site, Slice, Sliver, Controller
6 from core.models import ControllerLinkManager,ControllerLinkDeletionManager
7 from django.contrib.contenttypes.models import ContentType
8 from django.contrib.contenttypes import generic
9 from django.core.exceptions import ValidationError
11 # If true, then IP addresses will be allocated by the model. If false, then
12 # we will assume the observer handles it.
15 def ParseNatList(ports):
16 """ Support a list of ports in the format "protocol:port, protocol:port, ..."
20 tcp 123, tcp 124, tcp 125, udp 201, udp 202
22 User can put either a "/" or a " " between protocol and ports
23 Port ranges can be specified with "-" or ":"
27 parts = ports.split(",")
31 (protocol, ports) = part.split("/",1)
33 (protocol, ports) = part.split(None,1)
35 raise TypeError('malformed port specifier %s, format example: "tcp 123, tcp 201:206, udp 333"' % part)
37 protocol = protocol.strip()
40 if not (protocol in ["udp", "tcp"]):
41 raise ValueError('unknown protocol %s' % protocol)
44 (first, last) = ports.split("-")
45 first = int(first.strip())
46 last = int(last.strip())
47 portStr = "%d:%d" % (first, last)
49 (first, last) = ports.split(":")
50 first = int(first.strip())
51 last = int(last.strip())
52 portStr = "%d:%d" % (first, last)
54 portStr = "%d" % int(ports)
56 nats.append( {"l4_protocol": protocol, "l4_port": portStr} )
60 def ValidateNatList(ports):
64 raise ValidationError(str(e))
66 class NetworkTemplate(PlCoreBase):
67 VISIBILITY_CHOICES = (('public', 'public'), ('private', 'private'))
68 TRANSLATION_CHOICES = (('none', 'none'), ('NAT', 'NAT'))
69 TOPOLOGY_CHOICES = (('bigswitch', 'BigSwitch'), ('physical', 'Physical'), ('custom', 'Custom'))
70 CONTROLLER_CHOICES = ((None, 'None'), ('onos', 'ONOS'), ('custom', 'Custom'))
72 name = models.CharField(max_length=32)
73 description = models.CharField(max_length=1024, blank=True, null=True)
74 guaranteed_bandwidth = models.IntegerField(default=0)
75 visibility = models.CharField(max_length=30, choices=VISIBILITY_CHOICES, default="private")
76 translation = models.CharField(max_length=30, choices=TRANSLATION_CHOICES, default="none")
77 shared_network_name = models.CharField(max_length=30, blank=True, null=True)
78 shared_network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
79 topology_kind = models.CharField(null=False, blank=False, max_length=30, choices=TOPOLOGY_CHOICES, default="BigSwitch")
80 controller_kind = models.CharField(null=True, blank=True, max_length=30, choices=CONTROLLER_CHOICES, default=None)
82 def __init__(self, *args, **kwargs):
83 super(NetworkTemplate, self).__init__(*args, **kwargs)
85 # somehow these got set wrong inside of the live database. Remove this
86 # code after all is well...
87 if (self.topology_kind=="BigSwitch"):
88 print >> sys.stderr, "XXX warning: topology_kind invalid case"
89 self.topology_kind="bigswitch"
90 elif (self.topology_kind=="Physical"):
91 print >> sys.stderr, "XXX warning: topology_kind invalid case"
92 self.topology_kind="physical"
93 elif (self.topology_kind=="Custom"):
94 print >> sys.stderr, "XXX warning: topology_kind invalid case"
95 self.toplogy_kind="custom"
97 def __unicode__(self): return u'%s' % (self.name)
99 class Network(PlCoreBase):
100 name = models.CharField(max_length=32)
101 template = models.ForeignKey(NetworkTemplate)
102 subnet = models.CharField(max_length=32, blank=True)
103 ports = models.CharField(max_length=1024, blank=True, null=True, validators=[ValidateNatList])
104 labels = models.CharField(max_length=1024, blank=True, null=True)
105 owner = models.ForeignKey(Slice, related_name="ownedNetworks", help_text="Slice that owns control of this Network")
107 guaranteed_bandwidth = models.IntegerField(default=0)
108 permit_all_slices = models.BooleanField(default=False)
109 permitted_slices = models.ManyToManyField(Slice, blank=True, related_name="availableNetworks")
110 slices = models.ManyToManyField(Slice, blank=True, related_name="networks", through="NetworkSlice")
111 slivers = models.ManyToManyField(Sliver, blank=True, related_name="networks", through="NetworkSliver")
113 topology_parameters = models.TextField(null=True, blank=True)
114 controller_url = models.CharField(null=True, blank=True, max_length=1024)
115 controller_parameters = models.TextField(null=True, blank=True)
117 # for observer/manager
118 network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
119 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
120 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
122 def __unicode__(self): return u'%s' % (self.name)
124 def save(self, *args, **kwds):
125 if (not self.subnet) and (NO_OBSERVER):
126 from util.network_subnet_allocator import find_unused_subnet
127 self.subnet = find_unused_subnet(existing_subnets=[x.subnet for x in Network.objects.all()])
128 super(Network, self).save(*args, **kwds)
130 def can_update(self, user):
131 return self.owner.can_update(user)
135 return ParseNatList(self.ports)
138 def select_by_user(user):
140 qs = Network.objects.all()
142 slices = Slice.select_by_user(user)
143 #slice_ids = [s.id for s in Slice.select_by_user(user)]
144 qs = Network.objects.filter(owner__in=slices)
147 class ControllerNetwork(PlCoreBase):
148 objects = ControllerLinkManager()
149 deleted_objects = ControllerLinkDeletionManager()
151 # Stores the openstack ids at various controllers
152 network = models.ForeignKey(Network, related_name='controllernetworks')
153 controller = models.ForeignKey(Controller, related_name='controllernetworks')
154 net_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
155 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
156 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
157 subnet = models.CharField(max_length=32, blank=True)
159 def can_update(self, user):
163 def select_by_user(user):
165 qs = NetworkControllers.objects.all()
167 slices = Slice.select_by_user(user)
168 networks = Network.objects.filter(owner__in=slices)
169 qs = NetworkControllers.objects.filter(network__in=networks)
172 class NetworkSlice(PlCoreBase):
173 # This object exists solely so we can implement the permission check when
174 # adding slices to networks. It adds no additional fields to the relation.
176 network = models.ForeignKey(Network,related_name='networkslices')
177 slice = models.ForeignKey(Slice,related_name='networkslices')
179 def save(self, *args, **kwds):
181 if (slice not in self.network.permitted_slices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
182 # to add a sliver to the network, then one of the following must be true:
183 # 1) sliver's slice is in network's permittedSlices list,
184 # 2) sliver's slice is network's owner, or
185 # 3) network's permitAllSlices is true
186 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
188 super(NetworkSlice, self).save(*args, **kwds)
190 def __unicode__(self): return u'%s-%s' % (self.network.name, self.slice.name)
192 def can_update(self, user):
193 return self.slice.can_update(user)
196 def select_by_user(user):
198 qs = NetworkSlice.objects.all()
200 slice_ids = [s.id for s in Slice.select_by_user(user)]
201 qs = NetworkSlice.objects.filter(id__in=slice_ids)
204 class NetworkSliver(PlCoreBase):
205 network = models.ForeignKey(Network,related_name='networkslivers')
206 sliver = models.ForeignKey(Sliver,related_name='networkslivers')
207 ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
208 port_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum port id")
210 def save(self, *args, **kwds):
211 slice = self.sliver.slice
212 if (slice not in self.network.permitted_slices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
213 # to add a sliver to the network, then one of the following must be true:
214 # 1) sliver's slice is in network's permittedSlices list,
215 # 2) sliver's slice is network's owner, or
216 # 3) network's permitAllSlices is true
217 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
219 if (not self.ip) and (NO_OBSERVER):
220 from util.network_subnet_allocator import find_unused_address
221 self.ip = find_unused_address(self.network.subnet,
222 [x.ip for x in self.network.networksliver_set.all()])
223 super(NetworkSliver, self).save(*args, **kwds)
225 def __unicode__(self): return u'%s-%s' % (self.network.name, self.sliver.instance_name)
227 def can_update(self, user):
228 return self.sliver.can_update(user)
231 def select_by_user(user):
233 qs = NetworkSliver.objects.all()
235 sliver_ids = [s.id for s in NetworkSliver.select_by_user(user)]
236 qs = NetworkSliver.objects.filter(id__in=sliver_ids)
239 class Router(PlCoreBase):
240 name = models.CharField(max_length=32)
241 owner = models.ForeignKey(Slice, related_name="routers")
242 permittedNetworks = models.ManyToManyField(Network, blank=True, related_name="availableRouters")
243 networks = models.ManyToManyField(Network, blank=True, related_name="routers")
245 def __unicode__(self): return u'%s' % (self.name)
247 class NetworkParameterType(PlCoreBase):
248 name = models.SlugField(help_text="The name of this parameter", max_length=128)
249 description = models.CharField(max_length=1024)
251 def __unicode__(self): return u'%s' % (self.name)
253 class NetworkParameter(PlCoreBase):
254 parameter = models.ForeignKey(NetworkParameterType, related_name="networkparameters", help_text="The type of the parameter")
255 value = models.CharField(help_text="The value of this parameter", max_length=1024)
257 # The required fields to do a ObjectType lookup, and object_id assignment
258 content_type = models.ForeignKey(ContentType)
259 object_id = models.PositiveIntegerField()
260 content_object = generic.GenericForeignKey('content_type', 'object_id')
262 def __unicode__(self):
263 return self.parameter.name