def is_bridge_present(br, root_helper): ovs_bridges = ovs_lib.get_bridges(root_helper) if br in ovs_bridges: return True else: return False
def setup_lldpad_ports(self): """Setup the flows for passing LLDP/VDP frames in OVS.""" # Creating the physical bridge and setting up patch ports is done by # Openstack ovs_bridges = ovs_lib.get_bridges(self.root_helper) if self.ext_br not in ovs_bridges or self.integ_br not in ovs_bridges: LOG.error(_LE("Integ or Physical Bridge not configured by" "Openstack")) raise dfae.DfaAgentFailed(reason="Bridge Unavailable") br = ovs_lib.OVSBridge(self.ext_br, root_helper=self.root_helper) self.ext_br_obj = br int_br = ovs_lib.OVSBridge(self.integ_br, root_helper=self.root_helper) self.integ_br_obj = int_br self.phy_peer_port, self.int_peer_port = self.find_interconnect_ports() if self.phy_peer_port is None or self.int_peer_port is None: LOG.error(_LE("Integ or Physical Patch/Veth Ports not " "configured by Openstack")) raise dfae.DfaAgentFailed(reason="Ports Unconfigured") lldp_ovs_veth_str = constants.LLDPAD_OVS_VETH_PORT + self.uplink if len(lldp_ovs_veth_str) > constants.MAX_VETH_NAME: lldp_ovs_veth_str = self.gen_veth_str(constants.LLDPAD_OVS_VETH_PORT, self.uplink) lldp_loc_veth_str = constants.LLDPAD_LOC_VETH_PORT + self.uplink if len(lldp_loc_veth_str) > constants.MAX_VETH_NAME: lldp_loc_veth_str = self.gen_veth_str(constants.LLDPAD_LOC_VETH_PORT, self.uplink) ip_wrapper = ip_lib.IPWrapper() self.delete_vdp_flows() br.delete_port(lldp_ovs_veth_str) if ip_lib.device_exists(lldp_ovs_veth_str): # What about OVS restart cases fixme(padkrish) # IMPORTANT.. The link delete should be done only for non-restart # cases. Otherwise, The MAC address of the veth interface changes # for every delete/create. So, if lldpad has the association sent # already, retriggering it will make the ASSOC appear as coming # from another station and more than one VSI instance will appear # at the Leaf. Deleting the assoc and creating the assoc for new # veth is not optimal. fixme(padkrish) # ip_lib.IPDevice(lldp_ovs_veth_str,self.root_helper).link.delete() ovs_lib.execute(["/sbin/udevadm", "settle", "--timeout=10"]) lldp_loc_veth = ip_wrapper.device(lldp_loc_veth_str) lldp_ovs_veth = ip_wrapper.device(lldp_ovs_veth_str) else: # fixme(padkrish) Due to above reason, do the vethcreate below only # if it doesn't exist and not deleted. lldp_loc_veth, lldp_ovs_veth = ip_wrapper.add_veth(lldp_loc_veth_str, lldp_ovs_veth_str) if not br.port_exists(self.uplink): phy_port_num = br.add_port(self.uplink) else: phy_port_num = br.get_port_ofport(self.uplink) if phy_port_num == cconstants.INVALID_OFPORT: LOG.error(_LE("Uplink port not detected on external bridge")) return False if not br.port_exists(lldp_ovs_veth_str): lldp_ovs_portnum = br.add_port(lldp_ovs_veth) else: lldp_ovs_portnum = br.get_port_ofport(lldp_ovs_veth) if lldp_ovs_portnum == cconstants.INVALID_OFPORT: LOG.error(_LE("lldp veth port not detected on external bridge")) return False lldp_loc_veth.link.set_up() lldp_ovs_veth.link.set_up() # What about OVS restart cases fixme(padkrish) self.program_vdp_flows(lldp_ovs_portnum, phy_port_num) self.phy_peer_port_num = br.get_port_ofport(self.phy_peer_port) self.int_peer_port_num = int_br.get_port_ofport(self.int_peer_port) if self.phy_peer_port_num == cconstants.INVALID_OFPORT or self.int_peer_port_num == cconstants.INVALID_OFPORT: LOG.error( _LE("int or phy peer OF Port not detected on Int or" "Phy Bridge %(phy)s %(int)s"), {"phy": self.phy_peer_port_num, "int": self.int_peer_port_num}, ) return False self.lldpad_info = lldpad.LldpadDriver(lldp_loc_veth_str, self.uplink, self.root_helper) ret = self.lldpad_info.enable_evb() if not ret: LOG.error(_LE("Unable to cfg EVB")) return False self.lldp_veth_port = lldp_loc_veth_str LOG.info(_LI("Setting up lldpad ports complete")) return True
def setup_lldpad_ports(self): """Setup the flows for passing LLDP/VDP frames in OVS. """ # Creating the physical bridge and setting up patch ports is done by # OpenStack ovs_bridges = ovs_lib.get_bridges(self.root_helper) if self.ext_br not in ovs_bridges or self.integ_br not in ovs_bridges: self.uplink_fail_reason = cconstants.bridge_not_cfgd_reason % ( ovs_bridges, self.integ_br, self.ext_br) LOG.error("%s", self.uplink_fail_reason) raise dfae.DfaAgentFailed(reason=self.uplink_fail_reason) br = ovs_lib.OVSBridge(self.ext_br, root_helper=self.root_helper) self.ext_br_obj = br int_br = ovs_lib.OVSBridge(self.integ_br, root_helper=self.root_helper) self.integ_br_obj = int_br self.phy_peer_port, self.int_peer_port = self.find_interconnect_ports() if self.phy_peer_port is None or self.int_peer_port is None: self.uplink_fail_reason = cconstants.veth_not_cfgd_reason % ( self.phy_peer_port, self.int_peer_port) LOG.error("%s", self.uplink_fail_reason) raise dfae.DfaAgentFailed(reason=self.uplink_fail_reason) lldp_ovs_veth_str = constants.LLDPAD_OVS_VETH_PORT + self.uplink if len(lldp_ovs_veth_str) > constants.MAX_VETH_NAME: lldp_ovs_veth_str = self.gen_veth_str( constants.LLDPAD_OVS_VETH_PORT, self.uplink) lldp_loc_veth_str = constants.LLDPAD_LOC_VETH_PORT + self.uplink if len(lldp_loc_veth_str) > constants.MAX_VETH_NAME: lldp_loc_veth_str = self.gen_veth_str( constants.LLDPAD_LOC_VETH_PORT, self.uplink) ip_wrapper = ip_lib.IPWrapper() self.delete_vdp_flows() br.delete_port(lldp_ovs_veth_str) if ip_lib.device_exists(lldp_ovs_veth_str): # What about OVS restart cases fixme(padkrish) # IMPORTANT.. The link delete should be done only for non-restart # cases. Otherwise, The MAC address of the veth interface changes # for every delete/create. So, if lldpad has the association sent # already, retriggering it will make the ASSOC appear as coming # from another station and more than one VSI instance will appear # at the Leaf. Deleting the assoc and creating the assoc for new # veth is not optimal. fixme(padkrish) # ip_lib.IPDevice(lldp_ovs_veth_str,self.root_helper).link.delete() lldp_loc_veth = ip_wrapper.device(lldp_loc_veth_str) lldp_ovs_veth = ip_wrapper.device(lldp_ovs_veth_str) else: # fixme(padkrish) Due to above reason, do the vethcreate below only # if it doesn't exist and not deleted. lldp_loc_veth, lldp_ovs_veth = ( ip_wrapper.add_veth(lldp_loc_veth_str, lldp_ovs_veth_str)) if not br.port_exists(self.uplink): phy_port_num = br.add_port(self.uplink) else: phy_port_num = br.get_port_ofport(self.uplink) if phy_port_num == cconstants.INVALID_OFPORT: self.uplink_fail_reason = cconstants.invalid_uplink_ofport_reason LOG.error("%s", self.uplink_fail_reason) return False if not br.port_exists(lldp_ovs_veth_str): lldp_ovs_portnum = br.add_port(lldp_ovs_veth) else: lldp_ovs_portnum = br.get_port_ofport(lldp_ovs_veth) if lldp_ovs_portnum == cconstants.INVALID_OFPORT: self.uplink_fail_reason = cconstants.lldp_ofport_not_detect_reason LOG.error("%s", self.uplink_fail_reason) return False lldp_loc_veth.link.set_up() lldp_ovs_veth.link.set_up() # What about OVS restart cases fixme(padkrish) self.program_vdp_flows(lldp_ovs_portnum, phy_port_num) self.phy_peer_port_num = br.get_port_ofport(self.phy_peer_port) self.int_peer_port_num = int_br.get_port_ofport(self.int_peer_port) if (self.phy_peer_port_num == cconstants.INVALID_OFPORT or self.int_peer_port_num == cconstants.INVALID_OFPORT): self.uplink_fail_reason = cconstants.invalid_peer_ofport_reason % ( self.phy_peer_port_num, self.int_peer_port_num) LOG.error("%s", self.uplink_fail_reason) return False self.lldpad_info = (lldpad.LldpadDriver(lldp_loc_veth_str, self.uplink, self.root_helper)) ret = self.lldpad_info.enable_evb() if not ret: self.uplink_fail_reason = cconstants.evb_cfg_fail_reason LOG.error("%s", self.uplink_fail_reason) return False self.lldp_local_veth_port = lldp_loc_veth_str self.lldp_ovs_veth_port = lldp_ovs_veth_str LOG.info("Setting up lldpad ports complete") return True
def setup_lldpad_ports(self): '''Setup the flows for passing LLDP/VDP frames in OVS.''' # Creating the physical bridge and setting up patch ports is done by # Openstack ovs_bridges = ovs_lib.get_bridges(self.root_helper) if self.ext_br not in ovs_bridges or self.integ_br not in ovs_bridges: LOG.error( _LE("Integ or Physical Bridge not configured by" "Openstack")) raise dfae.DfaAgentFailed(reason="Bridge Unavailable") br = ovs_lib.OVSBridge(self.ext_br, root_helper=self.root_helper) self.ext_br_obj = br int_br = ovs_lib.OVSBridge(self.integ_br, root_helper=self.root_helper) self.integ_br_obj = int_br self.phy_peer_port, self.int_peer_port = self.find_interconnect_ports() if self.phy_peer_port is None or self.int_peer_port is None: LOG.error( _LE("Integ or Physical Patch/Veth Ports not " "configured by Openstack")) raise dfae.DfaAgentFailed(reason="Ports Unconfigured") lldp_ovs_veth_str = constants.LLDPAD_OVS_VETH_PORT + self.uplink if len(lldp_ovs_veth_str) > constants.MAX_VETH_NAME: lldp_ovs_veth_str = self.gen_veth_str( constants.LLDPAD_OVS_VETH_PORT, self.uplink) lldp_loc_veth_str = constants.LLDPAD_LOC_VETH_PORT + self.uplink if len(lldp_loc_veth_str) > constants.MAX_VETH_NAME: lldp_loc_veth_str = self.gen_veth_str( constants.LLDPAD_LOC_VETH_PORT, self.uplink) ip_wrapper = ip_lib.IPWrapper() self.delete_vdp_flows() br.delete_port(lldp_ovs_veth_str) if ip_lib.device_exists(lldp_ovs_veth_str): # What about OVS restart cases fixme(padkrish) # IMPORTANT.. The link delete should be done only for non-restart # cases. Otherwise, The MAC address of the veth interface changes # for every delete/create. So, if lldpad has the association sent # already, retriggering it will make the ASSOC appear as coming # from another station and more than one VSI instance will appear # at the Leaf. Deleting the assoc and creating the assoc for new # veth is not optimal. fixme(padkrish) # ip_lib.IPDevice(lldp_ovs_veth_str,self.root_helper).link.delete() ovs_lib.execute(['/sbin/udevadm', 'settle', '--timeout=10']) lldp_loc_veth = ip_wrapper.device(lldp_loc_veth_str) lldp_ovs_veth = ip_wrapper.device(lldp_ovs_veth_str) else: # fixme(padkrish) Due to above reason, do the vethcreate below only # if it doesn't exist and not deleted. lldp_loc_veth, lldp_ovs_veth = (ip_wrapper.add_veth( lldp_loc_veth_str, lldp_ovs_veth_str)) if not br.port_exists(self.uplink): phy_port_num = br.add_port(self.uplink) else: phy_port_num = br.get_port_ofport(self.uplink) if phy_port_num == cconstants.INVALID_OFPORT: LOG.error(_LE("Uplink port not detected on external bridge")) return False if not br.port_exists(lldp_ovs_veth_str): lldp_ovs_portnum = br.add_port(lldp_ovs_veth) else: lldp_ovs_portnum = br.get_port_ofport(lldp_ovs_veth) if lldp_ovs_portnum == cconstants.INVALID_OFPORT: LOG.error(_LE("lldp veth port not detected on external bridge")) return False lldp_loc_veth.link.set_up() lldp_ovs_veth.link.set_up() # What about OVS restart cases fixme(padkrish) self.program_vdp_flows(lldp_ovs_portnum, phy_port_num) self.phy_peer_port_num = br.get_port_ofport(self.phy_peer_port) self.int_peer_port_num = int_br.get_port_ofport(self.int_peer_port) if (self.phy_peer_port_num == cconstants.INVALID_OFPORT or self.int_peer_port_num == cconstants.INVALID_OFPORT): LOG.error( _LE("int or phy peer OF Port not detected on Int or" "Phy Bridge %(phy)s %(int)s"), { 'phy': self.phy_peer_port_num, 'int': self.int_peer_port_num }) return False self.lldpad_info = (lldpad.LldpadDriver(lldp_loc_veth_str, self.uplink, self.root_helper)) ret = self.lldpad_info.enable_evb() if not ret: LOG.error(_LE("Unable to cfg EVB")) return False self.lldp_veth_port = lldp_loc_veth_str LOG.info(_LI("Setting up lldpad ports complete")) return True