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 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