-"""
-Copyright (c) 2017 SONATA-NFV and Paderborn University
-ALL RIGHTS RESERVED.
-
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.
-
-Neither the name of the SONATA-NFV, Paderborn University
-nor the names of its contributors may be used to endorse or promote
-products derived from this software without specific prior written
-permission.
-
-This work has been performed in the framework of the SONATA project,
-funded by the European Commission under Grant number 671517 through
-the Horizon 2020 and 5G-PPP programmes. The authors would like to
-acknowledge the contributions of their colleagues of the SONATA
-partner consortium (www.sonata-nfv.eu).
-"""
+# Copyright (c) 2015 SONATA-NFV and Paderborn University
+# ALL RIGHTS RESERVED.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# Neither the name of the SONATA-NFV, Paderborn University
+# nor the names of its contributors may be used to endorse or promote
+# products derived from this software without specific prior written
+# permission.
+#
+# This work has been performed in the framework of the SONATA project,
+# funded by the European Commission under Grant number 671517 through
+# the Horizon 2020 and 5G-PPP programmes. The authors would like to
+# acknowledge the contributions of their colleagues of the SONATA
+# partner consortium (www.sonata-nfv.eu).
import random
import uuid
import logging
self.flow_classifiers = list()
self.chain_parameters = dict()
- # Cookie for internal identification of installed flows (e.g. to delete them)
+ # Cookie for internal identification of installed flows (e.g. to delete
+ # them)
self.cookie = random.randint(1, 0xffffffff)
def create_dict(self, compute):
}
return representation
+ def _get_port_pair(self, port_pair_group_id, compute):
+ port_pair_group = compute.find_port_pair_group_by_name_or_id(port_pair_group_id)
+ if len(port_pair_group.port_pairs) != 1:
+ raise RuntimeError("Only port pair groups with a single port pair are supported!")
+ return compute.find_port_pair_by_name_or_id(port_pair_group.port_pairs[0])
+
def install(self, compute):
+
+ port_pair_chain = map(lambda port_pair_group_id: self._get_port_pair(port_pair_group_id, compute),
+ self.port_pair_groups)
+ ingress_ports = map(lambda port_pair: port_pair.ingress, port_pair_chain)
+ egress_ports = map(lambda port_pair: port_pair.ingress, port_pair_chain)
+ chain_start = ingress_ports[0]
+ chain_rest = ingress_ports[1:]
+
for flow_classifier_id in self.flow_classifiers:
flow_classifier = compute.find_flow_classifier_by_name_or_id(flow_classifier_id)
- if flow_classifier:
- pass
- # TODO: for every flow classifier create match and pass it to setChain
+ if not flow_classifier:
+ raise RuntimeError("Unable to find flow_classifier %s" % flow_classifier_id)
- for group_id in self.port_pair_groups:
- port_pair_group = compute.find_port_pair_group_by_name_or_id(group_id)
- for port_pair_id in port_pair_group.port_pairs:
- port_pair = compute.find_port_pair_by_name_or_id(port_pair_id)
+ port = compute.find_port_by_name_or_id(flow_classifier.logical_source_port)
- server_ingress = None
+ chain = [(port, chain_start)] + zip(egress_ports, chain_rest)
+
+ for (egress_port, ingress_port) in chain:
server_egress = None
+ server_ingress = None
for server in compute.computeUnits.values():
- if port_pair.ingress.name in server.port_names:
- server_ingress = server
- elif port_pair.egress.name in server.port_names:
+ if egress_port.name in server.port_names or egress_port.id in server.port_names:
server_egress = server
+ if ingress_port.name in server.port_names or ingress_port.id in server.port_names:
+ server_ingress = server
- # TODO: Not sure, if this should throw an error
- if not server_ingress:
- logging.warn("Neutron SFC: ingress port %s not connected." % str(port_pair.ingress.name))
- continue
if not server_egress:
- logging.warn("Neutron SFC: egress port %s not connected." % str(port_pair.egress.name))
- continue
+ raise RuntimeError("Neutron SFC: egress port %s not connected to any server." %
+ egress_port.name)
+ if not server_ingress:
+ raise RuntimeError("Neutron SFC: ingress port %s not connected to any server." %
+ ingress_port.name)
compute.dc.net.setChain(
- server_ingress.name, server_egress.name,
- port_pair.ingress.intf_name, port_pair.egress.intf_name,
+ server_egress.name, server_ingress.name,
+ egress_port.intf_name, ingress_port.intf_name,
+ match=flow_classifier.to_match(),
+ mod_dl_dst=ingress_port.mac_address,
cmd="add-flow", cookie=self.cookie, priority=10, bidirectional=False,
- monitor=False
+ monitor=False, skip_vlan_tag=True
)
def uninstall(self, compute):