229 lines
11 KiB
Python
229 lines
11 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Copyright (c) 2022 Pim van Pelt
|
|
#
|
|
# 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.
|
|
#
|
|
# -*- coding: utf-8 -*-
|
|
import logging
|
|
import config.loopback as loopback
|
|
import config.interface as interface
|
|
import config.bondethernet as bondethernet
|
|
import config.bridgedomain as bridgedomain
|
|
import config.vxlan_tunnel as vxlan_tunnel
|
|
import config.lcp as lcp
|
|
from vpp.vppapi import VPPApi
|
|
|
|
class Reconciler():
|
|
def __init__(self, cfg):
|
|
self.logger = logging.getLogger('vppcfg.vppapi')
|
|
self.logger.addHandler(logging.NullHandler())
|
|
|
|
self.vpp = VPPApi()
|
|
self.cfg = cfg
|
|
|
|
def readconfig(self):
|
|
return self.vpp.readconfig()
|
|
|
|
def phys_exist(self, ifname_list):
|
|
""" Return True if all interfaces in the `ifname_list` exist as physical interface names
|
|
in VPP. Return False otherwise."""
|
|
ret = True
|
|
for ifname in ifname_list:
|
|
if not ifname in self.vpp.config['interface_names']:
|
|
self.logger.warning("Interface %s does not exist in VPP" % ifname)
|
|
ret = False
|
|
return ret
|
|
|
|
def prune_addresses(self, ifname, address_list):
|
|
""" Remove all addresses from interface ifname, except those in address_list """
|
|
idx = self.vpp.config['interface_names'][ifname].sw_if_index
|
|
for a in self.vpp.config['interface_addresses'][idx]:
|
|
self.logger.info("> set interface ip address del %s %s" % (ifname, a))
|
|
|
|
def prune(self):
|
|
ret = True
|
|
if not self.prune_addresses_set_interface_down():
|
|
self.logger.warning("Could not prune addresses and set interfaces down from VPP that are not in the config")
|
|
ret = False
|
|
if not self.prune_lcp():
|
|
self.logger.warning("Could not prune LCPs from VPP that are not in the config")
|
|
ret = False
|
|
return ret
|
|
|
|
def __parent_iface_by_encap(self, sup_sw_if_index, outer, dot1ad=True):
|
|
""" Returns the idx of an interface on a given super_sw_if_index with given dot1q/dot1ad outer and inner-dot1q=0 """
|
|
for idx, iface in self.vpp.config['interfaces'].items():
|
|
if iface.sup_sw_if_index != sup_sw_if_index:
|
|
continue
|
|
if iface.sub_inner_vlan_id > 0:
|
|
continue
|
|
if dot1ad and (iface.sub_if_flags&8) and iface.sub_outer_vlan_id == outer:
|
|
self.logger.debug("match: %s (dot1ad)" % iface.interface_name)
|
|
return idx
|
|
if not dot1ad and not (iface.sub_if_flags&8) and iface.sub_outer_vlan_id == outer:
|
|
self.logger.debug("match: %s (dot1q)" % iface.interface_name)
|
|
return idx
|
|
return None
|
|
|
|
def __get_encapsulation(self, iface):
|
|
if iface.sub_if_flags&8:
|
|
dot1ad = iface.sub_outer_vlan_id
|
|
dot1q = 0
|
|
else:
|
|
dot1q = iface.sub_outer_vlan_id
|
|
dot1ad = 0
|
|
inner_dot1q = iface.sub_inner_vlan_id
|
|
exact_match = iface.sub_if_flags&16
|
|
return { "dot1q": int(dot1q),
|
|
"dot1ad": int(dot1ad),
|
|
"inner-dot1q": int(inner_dot1q),
|
|
"exact-match": bool(exact_match) }
|
|
|
|
|
|
def prune_lcp(self):
|
|
lcps = self.vpp.config['lcps']
|
|
|
|
## Remove LCPs for QinX interfaces
|
|
for idx, lcp in lcps.items():
|
|
vpp_iface = self.vpp.config['interfaces'][lcp.phy_sw_if_index]
|
|
if vpp_iface.sub_inner_vlan_id == 0:
|
|
continue
|
|
config_ifname, config_iface = interface.get_by_lcp_name(self.cfg, lcp.host_if_name)
|
|
if not config_iface:
|
|
## QinX doesn't exist in the config
|
|
self.logger.info("1> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if not 'lcp' in config_iface:
|
|
## QinX doesn't have an LCP
|
|
self.logger.info("2> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
vpp_parent_idx = self.__parent_iface_by_encap(vpp_iface.sup_sw_if_index, vpp_iface.sub_outer_vlan_id, vpp_iface.sub_if_flags&8)
|
|
vpp_parent_iface = self.vpp.config['interfaces'][vpp_parent_idx]
|
|
parent_lcp = lcps[vpp_parent_iface.sw_if_index]
|
|
config_parent_ifname, config_parent_iface = interface.get_by_lcp_name(self.cfg, parent_lcp.host_if_name)
|
|
if not config_parent_iface:
|
|
## QinX's parent doesn't exist in the config
|
|
self.logger.info("3> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if not 'lcp' in config_parent_iface:
|
|
## QinX's parent doesn't have an LCP
|
|
self.logger.info("4> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if parent_lcp.host_if_name != config_parent_iface['lcp']:
|
|
## QinX's parent LCP name mismatch
|
|
self.logger.info("5> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
|
|
phy_lcp = lcps[vpp_iface.sup_sw_if_index]
|
|
config_phy_ifname, config_phy_iface = interface.get_by_lcp_name(self.cfg, phy_lcp.host_if_name)
|
|
if not config_phy_iface:
|
|
## QinX's phy doesn't exist in the config
|
|
self.logger.info("6> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if not 'lcp' in config_phy_iface:
|
|
## QinX's phy doesn't have an LCP
|
|
self.logger.info("6> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if phy_lcp.host_if_name != config_phy_iface['lcp']:
|
|
## QinX's phy LCP name mismatch
|
|
self.logger.info("7> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
|
|
config_encap = interface.get_encapsulation(self.cfg, config_ifname)
|
|
vpp_encap = self.__get_encapsulation(vpp_iface)
|
|
config_parent_encap = interface.get_encapsulation(self.cfg, config_parent_ifname)
|
|
vpp_parent_encap = self.__get_encapsulation(vpp_parent_iface)
|
|
if config_encap != vpp_encap:
|
|
## QinX's encapsulation mismatch
|
|
self.logger.info("8> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if config_parent_encap != vpp_parent_encap:
|
|
## QinX's parent encapsulation mismatch
|
|
self.logger.info("9> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
self.logger.debug("QinX LCP OK: %s -> (vpp=%s, config=%s)" % (lcp.host_if_name, vpp_iface.interface_name, config_ifname))
|
|
|
|
## Remove LCPs for sub-interfaces
|
|
for idx, lcp in lcps.items():
|
|
vpp_iface = self.vpp.config['interfaces'][lcp.phy_sw_if_index]
|
|
if vpp_iface.sub_inner_vlan_id > 0 or vpp_iface.sub_outer_vlan_id == 0:
|
|
continue
|
|
config_ifname, config_iface = interface.get_by_lcp_name(self.cfg, lcp.host_if_name)
|
|
if not config_iface:
|
|
## Sub doesn't exist in the config
|
|
self.logger.info("11> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if not 'lcp' in config_iface:
|
|
## Sub doesn't have an LCP
|
|
self.logger.info("12> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
|
|
phy_lcp = lcps[vpp_iface.sup_sw_if_index]
|
|
config_phy_ifname, config_phy_iface = interface.get_by_lcp_name(self.cfg, phy_lcp.host_if_name)
|
|
if not config_phy_iface:
|
|
## Sub's phy doesn't exist in the config
|
|
self.logger.info("13> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if not 'lcp' in config_phy_iface:
|
|
## Sub's phy doesn't have an LCP
|
|
self.logger.info("14> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if phy_lcp.host_if_name != config_phy_iface['lcp']:
|
|
## Sub's phy LCP name mismatch
|
|
self.logger.info("15> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
|
|
config_encap = interface.get_encapsulation(self.cfg, config_ifname)
|
|
vpp_encap = self.__get_encapsulation(vpp_iface)
|
|
if config_encap != vpp_encap:
|
|
## Sub's encapsulation mismatch
|
|
self.logger.info("10> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
self.logger.debug("Dot1Q/Dot1AD LCP OK: %s -> (vpp=%s, config=%s)" % (lcp.host_if_name, vpp_iface.interface_name, config_ifname))
|
|
|
|
## Remove LCPs for interfaces, bonds, tunnels, loops, bvis
|
|
for idx, lcp in lcps.items():
|
|
vpp_iface = self.vpp.config['interfaces'][lcp.phy_sw_if_index]
|
|
if vpp_iface.sub_inner_vlan_id > 0 or vpp_iface.sub_outer_vlan_id > 0:
|
|
continue
|
|
|
|
if vpp_iface.interface_dev_type=='Loopback':
|
|
config_ifname, config_iface = loopback.get_by_lcp_name(self.cfg, lcp.host_if_name)
|
|
elif vpp_iface.interface_dev_type=='BVI':
|
|
config_ifname, config_iface = bridgedomain.get_by_lcp_name(self.cfg, lcp.host_if_name)
|
|
else:
|
|
config_ifname, config_iface = interface.get_by_lcp_name(self.cfg, lcp.host_if_name)
|
|
|
|
if not config_iface:
|
|
## Interface doesn't exist in the config
|
|
self.logger.info("21> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
if not 'lcp' in config_iface:
|
|
## Interface doesn't have an LCP
|
|
self.logger.info("22> lcp delete %s" % vpp_iface.interface_name)
|
|
continue
|
|
self.logger.debug("LCP OK: %s -> (vpp=%s, config=%s)" % (lcp.host_if_name, vpp_iface.interface_name, config_ifname))
|
|
|
|
def prune_addresses_set_interface_down(self):
|
|
for ifname in self.vpp.get_qinx_interfaces() + self.vpp.get_dot1x_interfaces() + self.vpp.get_bondethernets() + self.vpp.get_vxlan_tunnels() + self.vpp.get_phys():
|
|
if not ifname in interface.get_interfaces(self.cfg):
|
|
self.logger.info("> set interface state %s down" % ifname)
|
|
self.prune_addresses(ifname, [])
|
|
|
|
return True
|
|
|
|
def create(self):
|
|
return False
|
|
|
|
def sync(self):
|
|
return False
|