From: stevenvanrossem Date: Thu, 13 Apr 2017 00:21:45 +0000 (+0200) Subject: Extend the External SAP functionality, so we can reach the service from the host X-Git-Tag: v3.1~30^2~33 X-Git-Url: https://osm.etsi.org/gitweb/?p=osm%2Fvim-emu.git;a=commitdiff_plain;h=86e64a08ca267ebd033ed87be5eef683d93e6c1d Extend the External SAP functionality, so we can reach the service from the host --- diff --git a/src/emuvim/api/sonata/dummygatekeeper.py b/src/emuvim/api/sonata/dummygatekeeper.py index 59960a9..ff217f0 100755 --- a/src/emuvim/api/sonata/dummygatekeeper.py +++ b/src/emuvim/api/sonata/dummygatekeeper.py @@ -85,8 +85,8 @@ def generate_subnets(prefix, base, subnet_size=50, mask=24): return r # private subnet definitions for the generated interfaces # 10.10.xxx.0/24 -SAP_SUBNETS = generate_subnets('10.10', 0, subnet_size=50, mask=24) -# 10.20.xxx.0/24 +SAP_SUBNETS = generate_subnets('10.10', 0, subnet_size=50, mask=30) +# 10.20.xxx.0/30 ELAN_SUBNETS = generate_subnets('10.20', 0, subnet_size=50, mask=24) # 10.30.xxx.0/30 ELINE_SUBNETS = generate_subnets('10.30', 0, subnet_size=50, mask=30) @@ -534,7 +534,7 @@ class Service(object): elif sap["type"] == "external": target_dc = sap.get("dc") # add interface to dc switch - target_dc.attachExternalSAP(sap['name'], str(sap['net'])) + target_dc.attachExternalSAP(sap['name'], sap['net']) def _connect_elines(self, eline_fwd_links, instance_uuid): """ @@ -563,26 +563,28 @@ class Service(object): elif src_sap_id in self.saps_ext: src_id = src_sap_id - src_if_name = src_sap_id + # set intf name to None so the chaining function will choose the first one + src_if_name = None src_name = self.vnf_id2vnf_name[src_id] dst_name = self.vnf_id2vnf_name[dst_id] dst_vnfi = self._get_vnf_instance(instance_uuid, dst_name) if dst_vnfi is not None: # choose first ip address in sap subnet sap_net = self.saps[src_sap_id]['net'] - sap_ip = "{0}/{1}".format(str(sap_net[1]), sap_net.prefixlen) + sap_ip = "{0}/{1}".format(str(sap_net[2]), sap_net.prefixlen) self._vnf_reconfigure_network(dst_vnfi, dst_if_name, sap_ip) setChaining = True elif dst_sap_id in self.saps_ext: dst_id = dst_sap_id - dst_if_name = dst_sap_id + # set intf name to None so the chaining function will choose the first one + dst_if_name = None src_name = self.vnf_id2vnf_name[src_id] dst_name = self.vnf_id2vnf_name[dst_id] src_vnfi = self._get_vnf_instance(instance_uuid, src_name) if src_vnfi is not None: sap_net = self.saps[dst_sap_id]['net'] - sap_ip = "{0}/{1}".format(str(sap_net[1]), sap_net.prefixlen) + sap_ip = "{0}/{1}".format(str(sap_net[2]), sap_net.prefixlen) self._vnf_reconfigure_network(src_vnfi, src_if_name, sap_ip) setChaining = True diff --git a/src/emuvim/dcemulator/node.py b/src/emuvim/dcemulator/node.py index 5cfc9ef..3587aff 100755 --- a/src/emuvim/dcemulator/node.py +++ b/src/emuvim/dcemulator/node.py @@ -25,18 +25,18 @@ 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). """ -from mininet.node import Docker +from mininet.node import Docker, OVSBridge from mininet.link import Link from emuvim.dcemulator.resourcemodel import NotEnoughResourcesAvailable import logging -import time -import json + LOG = logging.getLogger("dcemulator.node") LOG.setLevel(logging.DEBUG) DCDPID_BASE = 1000 # start of switch dpid's used for data center switches +EXTSAPDPID_BASE = 2000 # start of switch dpid's used for external SAP switches class EmulatorCompute(Docker): """ @@ -135,6 +135,11 @@ class Datacenter(object): DCDPID_BASE += 1 return DCDPID_BASE + def _get_next_extSAP_dpid(self): + global EXTSAPDPID_BASE + EXTSAPDPID_BASE += 1 + return EXTSAPDPID_BASE + def create(self): """ Each data center is represented by a single switch to which @@ -248,23 +253,17 @@ class Datacenter(object): return True - def attachExternalSAP(self, sap_name, sap_ip): - # create SAP as OVS internal interface - sap_intf = self.switch.attachInternalIntf(sap_name, sap_ip) - - # add this as a link to the DCnetwork graph, so it is available for routing - attr_dict2 = {'src_port_id': sap_name, 'src_port_nr': None, - 'src_port_name': sap_name, - 'dst_port_id': self.switch.ports[sap_intf], 'dst_port_nr': self.switch.ports[sap_intf], - 'dst_port_name': sap_intf.name} - self.net.DCNetwork_graph.add_edge(sap_name, self.switch.name, attr_dict=attr_dict2) + def attachExternalSAP(self, sap_name, sap_net, **params): + # create SAP as separate OVS switch with an assigned ip address + sap_ip = str(sap_net[1]) + '/' + str(sap_net.prefixlen) + sap_switch = self.net.addExtSAP(sap_name, sap_ip, dpid=hex(self._get_next_extSAP_dpid())[2:], **params) + sap_switch.start() - attr_dict2 = {'dst_port_id': sap_name, 'dst_port_nr': None, - 'dst_port_name': sap_name, - 'src_port_id': self.switch.ports[sap_intf], 'src_port_nr': self.switch.ports[sap_intf], - 'src_port_name': sap_intf.name} - self.net.DCNetwork_graph.add_edge(self.switch.name, sap_name, attr_dict=attr_dict2) + # link SAP to the DC switch + self.net.addLink(sap_switch, self.switch, cls=Link) + # allow connection to the external internet through the host + self.net.addSAPNAT(sap_switch, str(sap_net)) def listCompute(self): """