X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2FRO.git;a=blobdiff_plain;f=RO-SDN-onos_vpls%2Fosm_rosdn_onos_vpls%2Fsdn_assist_onos_vpls.py;fp=RO-SDN-onos_vpls%2Fosm_rosdn_onos_vpls%2Fsdn_assist_onos_vpls.py;h=8531444e6578735a4051ae208d4fe1c3967a3eb2;hp=0000000000000000000000000000000000000000;hb=949e05307d162826f2d4b9325758f3f232724458;hpb=e74dc4292590377f0a0bea63fd3a7be6c4c7e358 diff --git a/RO-SDN-onos_vpls/osm_rosdn_onos_vpls/sdn_assist_onos_vpls.py b/RO-SDN-onos_vpls/osm_rosdn_onos_vpls/sdn_assist_onos_vpls.py new file mode 100644 index 00000000..8531444e --- /dev/null +++ b/RO-SDN-onos_vpls/osm_rosdn_onos_vpls/sdn_assist_onos_vpls.py @@ -0,0 +1,219 @@ +# -*- coding: utf-8 -*- + +# Copyright 2018 Whitestack, LLC +# ************************************************************* + +# This file is part of OSM RO module +# All Rights Reserved to Whitestack, LLC + +# 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. +# For those usages not covered by the Apache License, Version 2.0 please +# contact: bdiaz@whitestack.com or glavado@whitestack.com +## +import logging +import uuid + +import requests +from requests.auth import HTTPBasicAuth + +from osm_ro.wim.sdnconn import SdnConnectorBase, SdnConnectorError + +log = logging.getLogger(__name__) + + +class OnosVpls(SdnConnectorBase): + """ + https://wiki.onosproject.org/display/ONOS/VPLS+User+Guide + """ + + def __init__(self, wim, wim_account, config=None, logger=None): + + super().__init__(wim, wim_account, config, log) + self.user = wim_account.get("user") + self.password = wim_account.get("password") + url = wim_account.get("wim_url") + if not url: + raise ValueError("'url' must be provided") + if not url.startswith("http"): + url = "http://" + url + if not url.endswith("/"): + url = url + "/" + self.url = url + "onos/v1/network/configuration" + log.info("ONOS VPLS Connector Initialized.") + + def check_credentials(self): + status_code = 503 + onos_config_req = None + try: + onos_config_req = requests.get(self.url, auth=HTTPBasicAuth(self.user, self.password)) + onos_config_req.raise_for_status() + except Exception as e: + if onos_config_req: + status_code = onos_config_req.status_code + log.exception('Error checking credentials') + raise SdnConnectorError('Error checking credentials', http_code=status_code) + + def get_connectivity_service_status(self, service_uuid, conn_info=None): + onos_config_req = requests.get(self.url, auth=HTTPBasicAuth(self.user, self.password)) + onos_config_req.raise_for_status() + onos_config = onos_config_req.json() + for vpls in onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList']: + if vpls['name'] == service_uuid: + return vpls + raise SdnConnectorError('VPLS {} not found'.format(service_uuid), http_code=404) + + def create_connectivity_service(self, service_type, connection_points): + if service_type.lower() != 'elan': + raise SdnConnectorError('Only ELAN network type is supported by ONOS VPLS.') + onos_config_req = requests.get(self.url, auth=HTTPBasicAuth(self.user, self.password)) + onos_config_req.raise_for_status() + onos_config = onos_config_req.json() + service_uuid = uuid.uuid4() + + if 'org.onosproject.vpls' in onos_config['apps']: + if 'vpls' not in onos_config['apps']['org.onosproject.vpls']: + onos_config['apps']['org.onosproject.vpls']['vpls'] = { + 'vplsList': [] + } + for vpls in onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList']: + if vpls['name'] == service_uuid: + raise SdnConnectorError('Network {} already exists.'.format(service_uuid)) + onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList'].append({ + 'name': service_uuid, + 'interfaces': [] + }) + self._pop_last_update_time(onos_config) + else: + onos_config['apps'] = { + 'org.onosproject.vpls': { + 'vpls': { + "vplsList": [ + { + 'name': service_uuid, + 'interfaces': [] + } + ] + } + } + } + response = requests.post(self.url, json=onos_config, auth=HTTPBasicAuth(self.user, self.password)) + log.info(onos_config) + response.raise_for_status() + for connection_point in connection_points: + self._add_network_port(service_uuid, connection_point) + return service_uuid, onos_config + + def edit_connectivity_service(self, service_uuid, + conn_info, connection_points, + **kwargs): + raise SdnConnectorError('Not supported', http_code=501) + + def delete_connectivity_service(self, service_uuid, conn_info=None): + onos_config_req = requests.get(self.url, auth=HTTPBasicAuth(self.user, self.password)) + onos_config_req.raise_for_status() + onos_config = onos_config_req.json() + # Removes ports used by network from onos config + for vpls in onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList']: + if vpls['name'] == service_uuid: + for interface in vpls['interfaces']: + for port in onos_config['ports'].values(): + for port_interface in port['interfaces']: + if port_interface['name'] == interface: + port['interfaces'].remove(port_interface) + onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList'].remove(vpls) + break + self._pop_last_update_time(onos_config) + response = requests.post(self.url, json=onos_config, auth=HTTPBasicAuth(self.user, self.password)) + response.raise_for_status() + + def _delete_network_port(self, net_id, port): + onos_config_req = requests.get(self.url, auth=HTTPBasicAuth(self.user, self.password)) + onos_config_req.raise_for_status() + onos_config = onos_config_req.json() + for vpls in onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList']: + if vpls['name'] == net_id: + for interface in vpls['interfaces']: + if interface == port['service_endpoint_id']: + vpls['interfaces'].remove(interface) + break + for onos_port in onos_config['ports'].values(): + for port_interface in onos_port['interfaces']: + if port_interface['name'] == port['service_endpoint_id']: + onos_port['interfaces'].remove(port_interface) + break + self._pop_last_update_time(onos_config) + response = requests.post(self.url, json=onos_config, auth=HTTPBasicAuth(self.user, self.password)) + response.raise_for_status() + + def _add_network_port(self, net_id, port): + onos_config_req = requests.get(self.url, auth=HTTPBasicAuth(self.user, self.password)) + onos_config_req.raise_for_status() + onos_config = onos_config_req.json() + self._append_port_to_onos_config(port, onos_config) + # Interfaces need to be registered before adding them to VPLS + response = requests.post(self.url, json=onos_config, auth=HTTPBasicAuth(self.user, self.password)) + response.raise_for_status() + for vpls in onos_config['apps']['org.onosproject.vpls']['vpls']['vplsList']: + if vpls['name'] == net_id: + vpls['interfaces'].append(port['service_endpoint_id']) + break + self._pop_last_update_time(onos_config) + response = requests.post(self.url, json=onos_config, auth=HTTPBasicAuth(self.user, self.password)) + response.raise_for_status() + + def _pop_last_update_time(self, onos_config): + if 'lastUpdateTime' in onos_config['apps']['org.onosproject.vpls']['vpls']: + onos_config['apps']['org.onosproject.vpls']['vpls'].pop('lastUpdateTime') + + def _append_port_to_onos_config(self, port, onos_config): + port_name = 'of:{}/{}'.format(port['service_endpoint_encapsulation_info']['switch_dpid'], + port['service_endpoint_encapsulation_info']['switch_port']) + interface_config = {'name': port['service_endpoint_id']} + if 'vlan' in port['service_endpoint_encapsulation_info'] and port['service_endpoint_encapsulation_info'][ + 'vlan']: + interface_config['vlan'] = port['service_endpoint_encapsulation_info']['vlan'] + if port_name in onos_config['ports'] and 'interfaces' in onos_config['ports'][port_name]: + for interface in onos_config['ports'][port_name]['interfaces']: + if interface['name'] == port['service_endpoint_id']: + onos_config['ports'][port_name]['interfaces'].remove(interface) + onos_config['ports'][port_name]['interfaces'].append(interface_config) + else: + onos_config['ports'][port_name] = { + 'interfaces': [interface_config] + } + + +if __name__ == '__main__': + pass + # host = '198.204.228.85' + # port = 8181 + # onos_vpls = OnosVpls(host, port, 'onos', 'rocks') + # ports = [ + # { + # 'uuid': '0a43961d', + # 'switch_dpid': '0000000000000001', + # 'switch_port': '1', + # 'vlan': 100 + # }, + # { + # 'uuid': 'ade3eefc', + # 'switch_dpid': '0000000000000003', + # 'switch_port': '1', + # 'vlan': 100 + # } + # ] + # onos_vpls.create_network('94979b37-3875-4f77-b620-01ff78f9c4fa', 'data') + # onos_vpls.add_network_port('94979b37-3875-4f77-b620-01ff78f9c4fa', ports[0]) + # onos_vpls.add_network_port('94979b37-3875-4f77-b620-01ff78f9c4fa', ports[1]) + # onos_vpls.delete_network_port('94979b37-3875-4f77-b620-01ff78f9c4fa', ports[1]) + # onos_vpls.delete_network('94979b37-3875-4f77-b620-01ff78f9c4fa')