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
8 from django.core.exceptions import ValidationError
10 # If true, then IP addresses will be allocated by the model. If false, then
11 # we will assume the observer handles it.
14 def ParseNatList(ports):
15 """ Support a list of ports in the format "protocol:port, protocol:port, ..."
19 tcp 123, tcp 124, tcp 125, udp 201, udp 202
21 User can put either a "/" or a " " between protocol and ports
22 Port ranges can be specified with "-" or ":"
26 parts = ports.split(",")
30 (protocol, ports) = part.split("/",1)
32 (protocol, ports) = part.split(None,1)
34 raise TypeError('malformed port specifier %s, format example: "tcp 123, tcp 201:206, udp 333"' % part)
36 protocol = protocol.strip()
39 if not (protocol in ["udp", "tcp"]):
40 raise ValueError('unknown protocol %s' % protocol)
43 (first, last) = ports.split("-")
44 first = int(first.strip())
45 last = int(last.strip())
46 portStr = "%d:%d" % (first, last)
48 (first, last) = ports.split(":")
49 first = int(first.strip())
50 last = int(last.strip())
51 portStr = "%d:%d" % (first, last)
53 portStr = "%d" % int(ports)
55 nats.append( {"l4_protocol": protocol, "l4_port": portStr} )
59 def ValidateNatList(ports):
63 raise ValidationError(str(e))
65 class NetworkTemplate(PlCoreBase):
66 VISIBILITY_CHOICES = (('public', 'public'), ('private', 'private'))
67 TRANSLATION_CHOICES = (('none', 'none'), ('NAT', 'NAT'))
69 name = models.CharField(max_length=32)
70 description = models.CharField(max_length=1024, blank=True, null=True)
71 guaranteedBandwidth = models.IntegerField(default=0)
72 visibility = models.CharField(max_length=30, choices=VISIBILITY_CHOICES, default="private")
73 translation = models.CharField(max_length=30, choices=TRANSLATION_CHOICES, default="none")
74 sharedNetworkName = models.CharField(max_length=30, blank=True, null=True)
75 sharedNetworkId = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
77 def __unicode__(self): return u'%s' % (self.name)
79 class Network(PlCoreBase):
80 name = models.CharField(max_length=32)
81 template = models.ForeignKey(NetworkTemplate)
82 subnet = models.CharField(max_length=32, blank=True)
83 ports = models.CharField(max_length=1024, blank=True, null=True, validators=[ValidateNatList])
84 labels = models.CharField(max_length=1024, blank=True, null=True)
85 owner = models.ForeignKey(Slice, related_name="ownedNetworks", help_text="Slice that owns control of this Network")
87 guaranteedBandwidth = models.IntegerField(default=0)
88 permitAllSlices = models.BooleanField(default=False)
89 permittedSlices = models.ManyToManyField(Slice, blank=True, related_name="availableNetworks")
90 slices = models.ManyToManyField(Slice, blank=True, related_name="networks", through="NetworkSlice")
91 slivers = models.ManyToManyField(Sliver, blank=True, related_name="networks", through="NetworkSliver")
93 # for observer/manager
94 network_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
95 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
96 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
98 def __unicode__(self): return u'%s' % (self.name)
100 def save(self, *args, **kwds):
101 if (not self.subnet) and (NO_OBSERVER):
102 from util.network_subnet_allocator import find_unused_subnet
103 self.subnet = find_unused_subnet(existing_subnets=[x.subnet for x in Network.objects.all()])
104 super(Network, self).save(*args, **kwds)
106 def can_update(self, user):
107 return self.owner.can_update(user)
111 return ParseNatList(self.ports)
114 def select_by_user(user):
116 qs = Network.objects.all()
118 slices = Slice.select_by_user(user)
119 #slice_ids = [s.id for s in Slice.select_by_user(user)]
120 qs = Network.objects.filter(owner__in=slices)
123 class NetworkDeployments(PlCoreBase):
124 objects = DeploymentLinkManager()
125 deleted_objects = DeploymentLinkDeletionManager()
127 # Stores the openstack ids at various deployments
128 network = models.ForeignKey(Network, related_name='networkdeployments')
129 deployment = models.ForeignKey(Deployment, related_name='networkdeployments')
130 net_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum network")
131 router_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum router id")
132 subnet_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum subnet id")
133 subnet = models.CharField(max_length=32, blank=True)
135 def can_update(self, user):
139 def select_by_user(user):
141 qs = NetworkDeployments.objects.all()
143 slices = Slice.select_by_user(user)
144 networks = Network.objects.filter(owner__in=slices)
145 qs = NetworkDeployments.objects.filter(network__in=networks)
148 class NetworkSlice(PlCoreBase):
149 # This object exists solely so we can implement the permission check when
150 # adding slices to networks. It adds no additional fields to the relation.
152 network = models.ForeignKey(Network,related_name='networkslices')
153 slice = models.ForeignKey(Slice,related_name='networkslices')
155 def save(self, *args, **kwds):
157 if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
158 # to add a sliver to the network, then one of the following must be true:
159 # 1) sliver's slice is in network's permittedSlices list,
160 # 2) sliver's slice is network's owner, or
161 # 3) network's permitAllSlices is true
162 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
164 super(NetworkSlice, self).save(*args, **kwds)
166 def __unicode__(self): return u'%s-%s' % (self.network.name, self.slice.name)
168 def can_update(self, user):
169 return self.slice.can_update(user)
172 def select_by_user(user):
174 qs = NetworkSlice.objects.all()
176 slice_ids = [s.id for s in Slice.select_by_user(user)]
177 qs = NetworkSlice.objects.filter(id__in=slice_ids)
180 class NetworkSliver(PlCoreBase):
181 network = models.ForeignKey(Network,related_name='networkslivers')
182 sliver = models.ForeignKey(Sliver,related_name='networkslivers')
183 ip = models.GenericIPAddressField(help_text="Sliver ip address", blank=True, null=True)
184 port_id = models.CharField(null=True, blank=True, max_length=256, help_text="Quantum port id")
186 def save(self, *args, **kwds):
187 slice = self.sliver.slice
188 if (slice not in self.network.permittedSlices.all()) and (slice != self.network.owner) and (not self.network.permitAllSlices):
189 # to add a sliver to the network, then one of the following must be true:
190 # 1) sliver's slice is in network's permittedSlices list,
191 # 2) sliver's slice is network's owner, or
192 # 3) network's permitAllSlices is true
193 raise ValueError("Slice %s is not allowed to connect to network %s" % (str(slice), str(self.network)))
195 if (not self.ip) and (NO_OBSERVER):
196 from util.network_subnet_allocator import find_unused_address
197 self.ip = find_unused_address(self.network.subnet,
198 [x.ip for x in self.network.networksliver_set.all()])
199 super(NetworkSliver, self).save(*args, **kwds)
201 def __unicode__(self): return u'%s-%s' % (self.network.name, self.sliver.instance_name)
203 def can_update(self, user):
204 return self.sliver.can_update(user)
207 def select_by_user(user):
209 qs = NetworkSliver.objects.all()
211 sliver_ids = [s.id for s in NetworkSliver.select_by_user(user)]
212 qs = NetworkSliver.objects.filter(id__in=sliver_ids)
215 class Router(PlCoreBase):
216 name = models.CharField(max_length=32)
217 owner = models.ForeignKey(Slice, related_name="routers")
218 permittedNetworks = models.ManyToManyField(Network, blank=True, related_name="availableRouters")
219 networks = models.ManyToManyField(Network, blank=True, related_name="routers")
221 def __unicode__(self): return u'%s' % (self.name)
223 class NetworkParameterType(PlCoreBase):
224 name = models.SlugField(help_text="The name of this parameter", max_length=128)
225 description = models.CharField(max_length=1024)
227 def __unicode__(self): return u'%s' % (self.name)
229 class NetworkParameter(PlCoreBase):
230 parameter = models.ForeignKey(NetworkParameterType, related_name="networkparameters", help_text="The type of the parameter")
231 value = models.CharField(help_text="The value of this parameter", max_length=1024)
233 # The required fields to do a ObjectType lookup, and object_id assignment
234 content_type = models.ForeignKey(ContentType)
235 object_id = models.PositiveIntegerField()
236 content_object = generic.GenericForeignKey('content_type', 'object_id')
238 def __unicode__(self):
239 return self.parameter.name