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Implement Prune Step 2: Remove any mismatched LCP, in correct order

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Pim van Pelt
2022-03-24 20:43:34 +00:00
parent 82bcb24d5e
commit 15c54d5e1d
1 changed files with 160 additions and 0 deletions
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vpp/reconciler.py
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@ -14,8 +14,10 @@
#
# -*- 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
@ -52,8 +54,166 @@ class Reconciler():
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))
return True
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):