3 from django.db import models
4 from core.models import PlCoreBase, Site, Slice, Sliver, Deployment
5 from django.contrib.contenttypes.models import ContentType
6 from django.contrib.contenttypes import generic
8 # If true, then IP addresses will be allocated by the model. If false, then
9 # we will assume the observer handles it.
12 class NetworkTemplate(PlCoreBase):
13 VISIBILITY_CHOICES = (('public', 'public'), ('private', 'private'))
14 TRANSLATION_CHOICES = (('none', 'none'), ('NAT', 'NAT'))
16 name = models.CharField(max_length=32)
17 description = models.CharField(max_length=1024, blank=True, null=True)
18 guaranteedBandwidth = models.IntegerField(default=0)
19 visibility = models.CharField(max_length=30, choices=VISIBILITY_CHOICES, default="private")
20 translation = models.CharField(max_length=30, choices=TRANSLATION_CHOICES, default="none")
21 sharedNetworkName = models.CharField(max_length=30, blank=True, null=True)
22 sharedNetworkId = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
24 def __unicode__(self): return u'%s' % (self.name)
27 def select_by_user(user):
28 return NetworkTemplate.objects.all()
30 class Network(PlCoreBase):
31 name = models.CharField(max_length=32)
32 template = models.ForeignKey(NetworkTemplate)
33 subnet = models.CharField(max_length=32, blank=True)
34 ports = models.CharField(max_length=1024, blank=True, null=True)
35 labels = models.CharField(max_length=1024, blank=True, null=True)
36 owner = models.ForeignKey(Slice, related_name="ownedNetworks", help_text="Slice that owns control of this Network")
38 guaranteedBandwidth = models.IntegerField(default=0)
39 permitAllSlices = models.BooleanField(default=False)
40 permittedSlices = models.ManyToManyField(Slice, blank=True, related_name="availableNetworks")
41 slices = models.ManyToManyField(Slice, blank=True, related_name="networks", through="NetworkSlice")
42 slivers = models.ManyToManyField(Sliver, blank=True, related_name="networks", through="NetworkSliver")
44 # for observer/manager
45 network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
46 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
47 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
49 def __unicode__(self): return u'%s' % (self.name)
51 def save(self, *args, **kwds):
52 if (not self.subnet) and (NO_OBSERVER):
53 from util.network_subnet_allocator import find_unused_subnet
54 self.subnet = find_unused_subnet(existing_subnets=[x.subnet for x in Network.objects.all()])
55 super(Network, self).save(*args, **kwds)
57 def can_update(self, user):
58 return self.owner.can_update(user)
61 def select_by_user(user):
63 qs = Network.objects.all()
65 slices = Slice.select_by_user(user)
66 #slice_ids = [s.id for s in Slice.select_by_user(user)]
67 qs = Network.objects.filter(owner__in=slices)
70 class NetworkDeployments(PlCoreBase):
71 # Stores the openstack ids at various deployments
72 network = models.ForeignKey(Network)
73 deployment = models.ForeignKey(Deployment)
74 net_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
75 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
76 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
77 subnet = models.CharField(max_length=32, blank=True)
79 def can_update(self, user):
83 def select_by_user(user):
85 qs = NetworkDeployments.objects.all()
87 slices = Slice.select_by_user(user)
88 networks = Network.objects.filter(owner__in=slices)
89 qs = NetworkDeployments.objects.filter(network__in=networks)
92 class NetworkSlice(PlCoreBase):
93 # This object exists solely so we can implement the permission check when
94 # adding slices to networks. It adds no additional fields to the relation.
96 network = models.ForeignKey(Network)
97 slice = models.ForeignKey(Slice)
99 def save(self, *args, **kwds):
101 if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
102 # to add a sliver to the network, then one of the following must be true:
103 # 1) sliver's slice is in network's permittedSlices list,
104 # 2) sliver's slice is network's owner, or
105 # 3) network's permitAllSlices is true
106 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
108 super(NetworkSlice, self).save(*args, **kwds)
110 def __unicode__(self): return u'%s-%s' % (self.network.name, self.slice.name)
112 def can_update(self, user):
113 return self.slice.can_update(user)
116 def select_by_user(user):
118 qs = NetworkSlice.objects.all()
120 slice_ids = [s.id for s in Slice.select_by_user(user)]
121 qs = NetworkSlice.objects.filter(id__in=slice_ids)
124 class NetworkSliver(PlCoreBase):
125 network = models.ForeignKey(Network)
126 sliver = models.ForeignKey(Sliver)
127 ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
128 port_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum port id")
130 def save(self, *args, **kwds):
131 slice = self.sliver.slice
132 if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
133 # to add a sliver to the network, then one of the following must be true:
134 # 1) sliver's slice is in network's permittedSlices list,
135 # 2) sliver's slice is network's owner, or
136 # 3) network's permitAllSlices is true
137 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
139 if (not self.ip) and (NO_OBSERVER):
140 from util.network_subnet_allocator import find_unused_address
141 self.ip = find_unused_address(self.network.subnet,
142 [x.ip for x in self.network.networksliver_set.all()])
143 super(NetworkSliver, self).save(*args, **kwds)
145 def __unicode__(self): return u'%s-%s' % (self.network.name, self.sliver.instance_name)
147 def can_update(self, user):
148 return self.sliver.can_update(user)
151 def select_by_user(user):
153 qs = NetworkSliver.objects.all()
155 sliver_ids = [s.id for s in NetworkSliver.select_by_user(user)]
156 qs = NetworkSliver.objects.filter(id__in=sliver_ids)
159 class Router(PlCoreBase):
160 name = models.CharField(max_length=32)
161 owner = models.ForeignKey(Slice, related_name="routers")
162 permittedNetworks = models.ManyToManyField(Network, blank=True, related_name="availableRouters")
163 networks = models.ManyToManyField(Network, blank=True, related_name="routers")
165 def __unicode__(self): return u'%s' % (self.name)
167 class NetworkParameterType(PlCoreBase):
168 name = models.SlugField(help_text="The name of this parameter", max_length=128)
169 description = models.CharField(max_length=1024)
171 def __unicode__(self): return u'%s' % (self.name)
173 class NetworkParameter(PlCoreBase):
174 parameter = models.ForeignKey(NetworkParameterType, related_name="parameters", help_text="The type of the parameter")
175 value = models.CharField(help_text="The value of this parameter", max_length=1024)
177 # The required fields to do a ObjectType lookup, and object_id assignment
178 content_type = models.ForeignKey(ContentType)
179 object_id = models.PositiveIntegerField()
180 content_object = generic.GenericForeignKey('content_type', 'object_id')
182 def __unicode__(self):
183 return self.parameter.name