3 from django.db import models
4 from core.models import PlCoreBase, Site, Slice, Sliver, Deployment
5 from core.models import DeploymentLinkManager,DeploymentLinkDeletionManager
6 from django.contrib.contenttypes.models import ContentType
7 from django.contrib.contenttypes import generic
9 # If true, then IP addresses will be allocated by the model. If false, then
10 # we will assume the observer handles it.
13 class NetworkTemplate(PlCoreBase):
14 VISIBILITY_CHOICES = (('public', 'public'), ('private', 'private'))
15 TRANSLATION_CHOICES = (('none', 'none'), ('NAT', 'NAT'))
17 name = models.CharField(max_length=32)
18 description = models.CharField(max_length=1024, blank=True, null=True)
19 guaranteedBandwidth = models.IntegerField(default=0)
20 visibility = models.CharField(max_length=30, choices=VISIBILITY_CHOICES, default="private")
21 translation = models.CharField(max_length=30, choices=TRANSLATION_CHOICES, default="none")
22 sharedNetworkName = models.CharField(max_length=30, blank=True, null=True)
23 sharedNetworkId = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
25 def __unicode__(self): return u'%s' % (self.name)
27 class Network(PlCoreBase):
28 name = models.CharField(max_length=32)
29 template = models.ForeignKey(NetworkTemplate)
30 subnet = models.CharField(max_length=32, blank=True)
31 ports = models.CharField(max_length=1024, blank=True, null=True)
32 labels = models.CharField(max_length=1024, blank=True, null=True)
33 owner = models.ForeignKey(Slice, related_name="ownedNetworks", help_text="Slice that owns control of this Network")
35 guaranteedBandwidth = models.IntegerField(default=0)
36 permitAllSlices = models.BooleanField(default=False)
37 permittedSlices = models.ManyToManyField(Slice, blank=True, related_name="availableNetworks")
38 slices = models.ManyToManyField(Slice, blank=True, related_name="networks", through="NetworkSlice")
39 slivers = models.ManyToManyField(Sliver, blank=True, related_name="networks", through="NetworkSliver")
41 # for observer/manager
42 network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
43 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
44 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
46 def __unicode__(self): return u'%s' % (self.name)
48 def save(self, *args, **kwds):
49 if (not self.subnet) and (NO_OBSERVER):
50 from util.network_subnet_allocator import find_unused_subnet
51 self.subnet = find_unused_subnet(existing_subnets=[x.subnet for x in Network.objects.all()])
52 super(Network, self).save(*args, **kwds)
54 def can_update(self, user):
55 return self.owner.can_update(user)
59 """ Support a list of ports in the format "protocol:port, protocol:port, ..."
63 tcp 123, tcp 124, tcp 125, udp 201, udp 202
65 User can put either a "/" or a " " between protocol and ports
66 Port ranges can be specified with "-" or ":"
70 parts = self.ports.split(",")
74 (protocol, ports) = part.split("/",1)
76 (protocol, ports) = part.split(None,1)
78 raise TypeError('malformed port specifier %s, format example: "tcp 123, tcp 201:206, udp 333"' % part)
80 protocol = protocol.strip()
83 if not (protocol in ["udp", "tcp"]):
84 raise TypeError('unknown protocol %s' % protocol)
87 (first, last) = ports.split("-")
88 first = int(first.strip())
89 last = int(last.strip())
90 portStr = "%d:%d" % (first, last)
92 (first, last) = ports.split(":")
93 first = int(first.strip())
94 last = int(last.strip())
95 portStr = "%d:%d" % (first, last)
97 portStr = "%d" % int(ports)
99 nats.append( {"l4_protocol": protocol, "l4_port": portStr} )
104 def select_by_user(user):
106 qs = Network.objects.all()
108 slices = Slice.select_by_user(user)
109 #slice_ids = [s.id for s in Slice.select_by_user(user)]
110 qs = Network.objects.filter(owner__in=slices)
113 class NetworkDeployments(PlCoreBase):
114 objects = DeploymentLinkManager()
115 deleted_objects = DeploymentLinkDeletionManager()
117 # Stores the openstack ids at various deployments
118 network = models.ForeignKey(Network)
119 deployment = models.ForeignKey(Deployment)
120 net_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
121 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
122 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
123 subnet = models.CharField(max_length=32, blank=True)
125 def can_update(self, user):
129 def select_by_user(user):
131 qs = NetworkDeployments.objects.all()
133 slices = Slice.select_by_user(user)
134 networks = Network.objects.filter(owner__in=slices)
135 qs = NetworkDeployments.objects.filter(network__in=networks)
138 class NetworkSlice(PlCoreBase):
139 # This object exists solely so we can implement the permission check when
140 # adding slices to networks. It adds no additional fields to the relation.
142 network = models.ForeignKey(Network)
143 slice = models.ForeignKey(Slice)
145 def save(self, *args, **kwds):
147 if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
148 # to add a sliver to the network, then one of the following must be true:
149 # 1) sliver's slice is in network's permittedSlices list,
150 # 2) sliver's slice is network's owner, or
151 # 3) network's permitAllSlices is true
152 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
154 super(NetworkSlice, self).save(*args, **kwds)
156 def __unicode__(self): return u'%s-%s' % (self.network.name, self.slice.name)
158 def can_update(self, user):
159 return self.slice.can_update(user)
162 def select_by_user(user):
164 qs = NetworkSlice.objects.all()
166 slice_ids = [s.id for s in Slice.select_by_user(user)]
167 qs = NetworkSlice.objects.filter(id__in=slice_ids)
170 class NetworkSliver(PlCoreBase):
171 network = models.ForeignKey(Network)
172 sliver = models.ForeignKey(Sliver)
173 ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
174 port_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum port id")
176 def save(self, *args, **kwds):
177 slice = self.sliver.slice
178 if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
179 # to add a sliver to the network, then one of the following must be true:
180 # 1) sliver's slice is in network's permittedSlices list,
181 # 2) sliver's slice is network's owner, or
182 # 3) network's permitAllSlices is true
183 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
185 if (not self.ip) and (NO_OBSERVER):
186 from util.network_subnet_allocator import find_unused_address
187 self.ip = find_unused_address(self.network.subnet,
188 [x.ip for x in self.network.networksliver_set.all()])
189 super(NetworkSliver, self).save(*args, **kwds)
191 def __unicode__(self): return u'%s-%s' % (self.network.name, self.sliver.instance_name)
193 def can_update(self, user):
194 return self.sliver.can_update(user)
197 def select_by_user(user):
199 qs = NetworkSliver.objects.all()
201 sliver_ids = [s.id for s in NetworkSliver.select_by_user(user)]
202 qs = NetworkSliver.objects.filter(id__in=sliver_ids)
205 class Router(PlCoreBase):
206 name = models.CharField(max_length=32)
207 owner = models.ForeignKey(Slice, related_name="routers")
208 permittedNetworks = models.ManyToManyField(Network, blank=True, related_name="availableRouters")
209 networks = models.ManyToManyField(Network, blank=True, related_name="routers")
211 def __unicode__(self): return u'%s' % (self.name)
213 class NetworkParameterType(PlCoreBase):
214 name = models.SlugField(help_text="The name of this parameter", max_length=128)
215 description = models.CharField(max_length=1024)
217 def __unicode__(self): return u'%s' % (self.name)
219 class NetworkParameter(PlCoreBase):
220 parameter = models.ForeignKey(NetworkParameterType, related_name="parameters", help_text="The type of the parameter")
221 value = models.CharField(help_text="The value of this parameter", max_length=1024)
223 # The required fields to do a ObjectType lookup, and object_id assignment
224 content_type = models.ForeignKey(ContentType)
225 object_id = models.PositiveIntegerField()
226 content_object = generic.GenericForeignKey('content_type', 'object_id')
228 def __unicode__(self):
229 return self.parameter.name