def CreateSlice(self, urn_req = None):
self.logger.info("Called CreateSlice URN REQ %r" % urn_req)
slice_gid = None
if urn_req and self.slices.has_key(urn_req):
# If the Slice has expired, treat this as
# a request to renew
slice_cred = self.slices[urn_req]
if slice_cred.expiration <= datetime.datetime.utcnow():
# Need to renew this slice
self.logger.info("CreateSlice on %r found existing cred that expired at %r - will renew", urn_req, slice_cred.expiration)
slice_gid = slice_cred.get_gid_object()
else:
self.logger.debug("Slice cred is still valid at %r until %r - return it", datetime.datetime.utcnow(), slice_cred.expiration)
return slice_cred.save_to_string()
# First ensure we have a slice_urn
if urn_req:
# FIXME: Validate urn_req has the right form
# to be issued by this CH
if not urn_util.is_valid_urn(urn_req):
# FIXME: make sure it isnt empty, etc...
urn = urn_util.publicid_to_urn(urn_req)
else:
urn = urn_req
else:
# Generate a unique URN for the slice
# based on this CH location and a UUID
# Where was the slice created?
(ipaddr, port) = self._server.socket._sock.getsockname()
# FIXME: Get public_id start from a properties file
# Create a unique name for the slice based on uuid
slice_name = uuid.uuid4().__str__()[4:12]
public_id = 'IDN %s slice %s//%s:%d' % (SLICE_AUTHORITY, slice_name,
ipaddr,
port)
# this func adds the urn:publicid:
# and converts spaces to +'s, and // to :
urn = urn_util.publicid_to_urn(public_id)
# Now create a GID for the slice (signed credential)
if slice_gid is None:
try:
slice_gid = cert_util.create_cert(urn, self.keyfile, self.certfile)[0]
except Exception, exc:
self.logger.error("Cant create slice gid for slice urn %s: %s", urn, traceback.format_exc())
raise Exception("Failed to create slice %s. Cant create slice gid" % urn, exc)
def test_external_rspec(self):
self.test_create_aggregates()
adv_rspec = rspec_mod.get_resources(None, None)
d1 = rspec_mod.parse_external_rspec(adv_rspec)
# replace all the urn prefixes with external ones
test_prefix = publicid_to_urn(
"IDN %s//%s" % ("test//test", settings.OPENFLOW_GCF_BASE_SUFFIX))
adv_rspec2 = adv_rspec.replace(rspec_mod.OPENFLOW_GAPI_RSC_URN_PREFIX,
test_prefix)
d2 = rspec_mod.parse_external_rspec(adv_rspec2)
self.assertEqual(d1, d2)
def test_external_rspec(self):
self.test_create_aggregates()
adv_rspec = rspec_mod.get_resources(None, None)
d1 = rspec_mod.parse_external_rspec(adv_rspec)
# replace all the urn prefixes with external ones
test_prefix = publicid_to_urn(
"IDN %s//%s" % ("test//test", settings.OPENFLOW_GCF_BASE_SUFFIX)
)
adv_rspec2 = adv_rspec.replace(
rspec_mod.OPENFLOW_GAPI_RSC_URN_PREFIX, test_prefix)
d2 = rspec_mod.parse_external_rspec(adv_rspec2)
self.assertEqual(d1, d2)
PORT_TAG = "port"
VERSION = "version"
CURRENT_ADV_VERSION = "2"
URN = "urn"
SRC_URN = "src_urn"
DST_URN = "dst_urn"
LOCATION = "location"
NAME = "name"
FLOWVISOR_URL = "flowvisor_url"
OPENFLOW_GAPI_RSC_URN_PREFIX = publicid_to_urn(
"IDN %s//%s" % (settings.GCF_BASE_NAME, settings.OPENFLOW_GCF_BASE_SUFFIX)
)
SWITCH_URN_REGEX = r"^%s\+switch:(?P<dpid>[\d:a-fA-F]+)$" % \
OPENFLOW_GAPI_RSC_URN_PREFIX.replace("+", r"\+")
PORT_URN_REGEX = r"%s\+port:(?P<port>\d+)$" % SWITCH_URN_REGEX[:-1]
switch_re = re.compile(SWITCH_URN_REGEX)
port_re = re.compile(PORT_URN_REGEX)
EXTERNAL_SWITCH_URN_REGEX = r"^(?P<prefix>.*)\+switch:(?P<dpid>[:a-fA-F\d]+)$"
EXTERNAL_PORT_URN_REGEX = r"%s\+port:(?P<port>\d+)$" % EXTERNAL_SWITCH_URN_REGEX[:-1]
external_switch_re = re.compile(EXTERNAL_SWITCH_URN_REGEX)
external_port_re = re.compile(EXTERNAL_PORT_URN_REGEX)
PORT_NUM_TAG = "port_num"
PORT_TAG = "port"
VERSION = "version"
CURRENT_ADV_VERSION = "2"
URN = "urn"
SRC_URN = "src_urn"
DST_URN = "dst_urn"
LOCATION = "location"
NAME = "name"
FLOWVISOR_URL = "flowvisor_url"
OPENFLOW_GAPI_RSC_URN_PREFIX = publicid_to_urn(
"IDN %s//%s" % (settings.GCF_BASE_NAME, settings.OPENFLOW_GCF_BASE_SUFFIX))
SWITCH_URN_REGEX = r"^%s\+switch:(?P<dpid>[\d:a-fA-F]+)$" % \
OPENFLOW_GAPI_RSC_URN_PREFIX.replace("+", r"\+")
PORT_URN_REGEX = r"%s\+port:(?P<port>\d+)$" % SWITCH_URN_REGEX[:-1]
switch_re = re.compile(SWITCH_URN_REGEX)
port_re = re.compile(PORT_URN_REGEX)
EXTERNAL_SWITCH_URN_REGEX = r"^(?P<prefix>.*)\+switch:(?P<dpid>[:a-fA-F\d]+)$"
EXTERNAL_PORT_URN_REGEX = r"%s\+port:(?P<port>\d+)$" % EXTERNAL_SWITCH_URN_REGEX[:
-1]
external_switch_re = re.compile(EXTERNAL_SWITCH_URN_REGEX)
external_port_re = re.compile(EXTERNAL_PORT_URN_REGEX)
'''
Created on Oct 6, 2010
@author: jnaous
'''
from django.db import models
from django.conf import settings
from openflow.plugin.gapi import gapi, rspec
from expedient.common.federation.geni.util.urn_util import publicid_to_urn
OTHER_BASENAME = "test//test"
OTHER_PREFIX = publicid_to_urn(
"IDN %s//%s" % (OTHER_BASENAME, settings.OPENFLOW_GCF_BASE_SUFFIX))
class DummyOFAggregate(models.Model):
#adv_rspec = models.XMLField()
adv_rspec = models.TextField()
#resv_rspec = models.XMLField(null=True, blank=True)
resv_rspec = models.TextField(null=True, blank=True)
def snapshot_switches(self):
self.adv_rspec = gapi.ListResources({}, None)
self.adv_rspec = self.adv_rspec.replace(
rspec.OPENFLOW_GAPI_RSC_URN_PREFIX, OTHER_PREFIX)
self.save()
'''
Created on Oct 6, 2010
@author: jnaous
'''
from django.db import models
from django.conf import settings
from openflow.plugin.gapi import gapi, rspec
from expedient.common.federation.geni.util.urn_util import publicid_to_urn
OTHER_BASENAME ="test//test"
OTHER_PREFIX = publicid_to_urn(
"IDN %s//%s"
% (OTHER_BASENAME, settings.OPENFLOW_GCF_BASE_SUFFIX)
)
class DummyOFAggregate(models.Model):
#adv_rspec = models.XMLField()
adv_rspec = models.TextField()
#resv_rspec = models.XMLField(null=True, blank=True)
resv_rspec = models.TextField(null=True, blank=True)
def snapshot_switches(self):
self.adv_rspec = gapi.ListResources({}, None)
self.adv_rspec = self.adv_rspec.replace(
rspec.OPENFLOW_GAPI_RSC_URN_PREFIX, OTHER_PREFIX)
self.save()