/
config_db.py
4837 lines (4395 loc) · 194 KB
/
config_db.py
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#
# Copyright (c) 2015 Juniper Networks, Inc. All rights reserved.
#
"""
This file contains config data model for schema transformer
"""
import gevent.monkey
gevent.monkey.patch_all()
import sys
reload(sys)
sys.setdefaultencoding('UTF8')
import copy
import uuid
import itertools
import socket
import cfgm_common as common
from netaddr import IPNetwork, IPAddress
from cfgm_common.exceptions import NoIdError, RefsExistError, BadRequest
from cfgm_common.exceptions import HttpError, RequestSizeError
from cfgm_common import svc_info
from cfgm_common.vnc_db import DBBase
from vnc_api.vnc_api import *
from pysandesh.sandesh_base import *
from pysandesh.sandesh_logger import *
from cfgm_common.uve.virtual_network.ttypes import *
from schema_transformer.sandesh.st_introspect import ttypes as sandesh
from cfgm_common.uve.config_req.ttypes import *
try:
# python2.7
from collections import OrderedDict
except:
# python2.6
from ordereddict import OrderedDict
import jsonpickle
_PROTO_STR_TO_NUM_IPV4 = {
'icmp6': '58',
'icmp': '1',
'tcp': '6',
'udp': '17',
'any': 'any',
}
_PROTO_STR_TO_NUM_IPV6 = {
'icmp6': '58',
'icmp': '58',
'tcp': '6',
'udp': '17',
'any': 'any',
}
RULE_IMPLICIT_ALLOW_UUID = common.RULE_IMPLICIT_ALLOW_UUID
RULE_IMPLICIT_DENY_UUID = common.RULE_IMPLICIT_DENY_UUID
def _raise_and_send_uve_to_sandesh(obj_type, err_info, sandesh):
config_req_err = SystemConfigReq(obj_type=obj_type,
err_info=err_info)
config_req_err.name = socket.gethostname()
config_req_trace = SystemConfigReqTrace(data=config_req_err,
sandesh=sandesh)
config_req_trace.send(sandesh=sandesh)
def _access_control_list_update(acl_obj, name, obj, entries):
if acl_obj is None:
if entries is None:
return None
acl_obj = AccessControlList(name, obj, entries)
try:
DBBaseST._vnc_lib.access_control_list_create(acl_obj)
return acl_obj
except (NoIdError, BadRequest) as e:
DBBaseST._logger.error(
"Error while creating acl %s for %s: %s" %
(name, obj.get_fq_name_str(), str(e)))
except RequestSizeError as e:
# log the error and raise an alarm
DBBaseST._logger.error(
"Bottle request size error while creating acl %s for %s" %
(name, obj.get_fq_name_str()))
err_info = {'acl rule limit exceeded': True}
_raise_and_send_uve_to_sandesh('ACL', err_info,
DBBaseST._sandesh)
return None
else:
if entries is None:
try:
DBBaseST._vnc_lib.access_control_list_delete(id=acl_obj.uuid)
except NoIdError:
pass
return None
entries_hash = hash(entries)
# if entries did not change, just return the object
if acl_obj.get_access_control_list_hash() == entries_hash:
return acl_obj
# Set new value of entries on the ACL
acl_obj.set_access_control_list_entries(entries)
acl_obj.set_access_control_list_hash(entries_hash)
try:
DBBaseST._vnc_lib.access_control_list_update(acl_obj)
except HttpError as he:
DBBaseST._logger.error(
"HTTP error while updating acl %s for %s: %d, %s" %
(name, obj.get_fq_name_str(), he.status_code, he.content))
except NoIdError:
DBBaseST._logger.error("NoIdError while updating acl %s for %s" %
(name, obj.get_fq_name_str()))
except RequestSizeError as e:
# log the error and raise an alarm
DBBaseST._logger.error(
"Bottle request size error while creating acl %s for %s" %
(name, obj.get_fq_name_str()))
err_info = {'acl rule limit exceeded': True}
_raise_and_send_uve_to_sandesh('ACL', err_info,
DBBaseST._sandesh)
return acl_obj
# end _access_control_list_update
def _pp_json_object(obj):
parsed = json.loads(jsonpickle.encode(obj, unpicklable=False))
return json.dumps(parsed, indent=4)
def _create_pprinted_prop_list(name, value):
return sandesh.PropList(name, _pp_json_object(value))
class DBBaseST(DBBase):
obj_type = __name__
_indexed_by_name = True
ref_fields = []
prop_fields = []
def update(self, obj=None):
return self.update_vnc_obj(obj)
def delete_obj(self):
for ref_field in self.ref_fields:
self.update_refs(ref_field, {})
def evaluate(self):
# Implement in the derived class
pass
@classmethod
def reinit(cls):
for obj in cls.list_vnc_obj():
try:
cls.locate(obj.get_fq_name_str(), obj)
except Exception as e:
cls._logger.error("Error in reinit for %s %s: %s" % (
cls.obj_type, obj.get_fq_name_str(), str(e)))
# end reinit
def handle_st_object_req(self):
st_obj = sandesh.StObject(object_type=self.obj_type,
object_fq_name=self.name)
try:
st_obj.object_uuid = self.obj.uuid
except AttributeError:
pass
st_obj.obj_refs = []
for field in self.ref_fields:
if self._get_sandesh_ref_list(field):
st_obj.obj_refs.append(self._get_sandesh_ref_list(field))
st_obj.properties = [
sandesh.PropList(field,
_pp_json_object(getattr(self, field)))
for field in self.prop_fields
if hasattr(self, field)]
return st_obj
def _get_sandesh_ref_list(self, ref_type):
try:
ref = getattr(self, ref_type)
refs = [ref] if ref else []
except AttributeError:
try:
refs = getattr(self, ref_type + 's')
if isinstance(refs, dict):
refs = refs.keys()
except AttributeError:
return
return sandesh.RefList(ref_type, refs)
# end DBBaseST
class GlobalSystemConfigST(DBBaseST):
_dict = {}
obj_type = 'global_system_config'
_autonomous_system = 0
ibgp_auto_mesh = None
prop_fields = ['autonomous_system', 'ibgp_auto_mesh', 'bgpaas_parameters']
@classmethod
def reinit(cls):
for gsc in cls.list_vnc_obj():
try:
cls.locate(gsc.get_fq_name_str(), gsc)
except Exception as e:
cls._logger.error("Error in reinit for %s %s: %s" % (
cls.obj_type, gsc.get_fq_name_str(), str(e)))
# end reinit
def __init__(self, name, obj):
self.name = name
self.uuid = obj.uuid
self.update(obj)
# end __init__
def update(self, obj=None):
changed = self.update_vnc_obj(obj)
if 'autonomous_system' in changed:
self.update_autonomous_system(self.obj.autonomous_system)
if 'bgpaas_parameters' in changed:
self.update_bgpaas_parameters(self.obj.bgpaas_parameters)
if 'ibgp_auto_mesh' in changed:
GlobalSystemConfigST.ibgp_auto_mesh = self.ibgp_auto_mesh
return changed
# end update
def update_bgpaas_parameters(self, bgpaas_params):
if bgpaas_params:
new_range = {'start': bgpaas_params.port_start,
'end': bgpaas_params.port_end}
self._object_db._bgpaas_port_allocator.reallocate([new_range])
@classmethod
def get_autonomous_system(cls):
return cls._autonomous_system
# end get_autonomous_system
@classmethod
def get_ibgp_auto_mesh(cls):
if cls.ibgp_auto_mesh is None:
return True
return cls.ibgp_auto_mesh
# end get_ibgp_auto_mesh
@classmethod
def update_autonomous_system(cls, new_asn):
if int(new_asn) == cls._autonomous_system:
return False
# From the global route target list, pick ones with the
# changed ASN, and update the routing instances' referred
# by the route target
for route_tgt in RouteTargetST.values():
_, asn, target = route_tgt.obj.get_fq_name()[0].split(':')
if int(asn) != cls.get_autonomous_system():
continue
if int(target) < common.BGP_RTGT_MIN_ID:
continue
new_rtgt_name = "target:%s:%s" % (new_asn, target)
new_rtgt_obj = RouteTargetST.locate(new_rtgt_name)
old_rtgt_name = "target:%d:%s" % (cls._autonomous_system, target)
old_rtgt_obj = RouteTarget(old_rtgt_name)
for ri_ref in route_tgt.obj.get_routing_instance_back_refs() or []:
rt_inst = RoutingInstanceST.get(':'.join(ri_ref['to']))
if rt_inst:
ri = rt_inst.obj
else:
continue
inst_tgt_data = InstanceTargetType()
ri.del_route_target(old_rtgt_obj)
ri.add_route_target(new_rtgt_obj.obj, inst_tgt_data)
cls._vnc_lib.routing_instance_update(ri)
# Also, update the static_routes, if any, in the routing
# instance with the new route target
static_route_entries = ri.get_static_route_entries()
if static_route_entries is None:
continue
for static_route in static_route_entries.get_route() or []:
if old_rtgt_name in static_route.route_target:
static_route.route_target.remove(old_rtgt_name)
static_route.route_target.append(new_rtgt_name)
ri.set_static_route_entries(static_route_entries)
cls._vnc_lib.routing_instance_update(ri)
# Updating the logical router referred by the route target with
# new route target.
for router_ref in route_tgt.obj.get_logical_router_back_refs() or []:
lr = LogicalRouterST.get(':'.join(router_ref['to']))
if lr:
logical_router = lr.obj
else:
continue
logical_router.del_route_target(old_rtgt_obj)
logical_router.add_route_target(new_rtgt_obj.obj)
cls._vnc_lib.logical_router_update(logical_router)
RouteTargetST.delete_vnc_obj(old_rtgt_obj.get_fq_name()[0])
cls._autonomous_system = int(new_asn)
return True
# end update_autonomous_system
def evaluate(self):
for router in BgpRouterST.values():
router.update_global_asn(self._autonomous_system)
router.update_peering()
# end for router
for router in LogicalRouterST.values():
router.update_autonomous_system(self._autonomous_system)
# end for router
if self.obj.bgpaas_parameters:
self.update_bgpaas_parameters(self.obj.bgpaas_parameters)
# end evaluate
# end GlobalSystemConfigST
# a struct to store attributes related to Virtual Networks needed by
# schema transformer
class VirtualNetworkST(DBBaseST):
_dict = {}
obj_type = 'virtual_network'
ref_fields = ['network_policy', 'virtual_machine_interface', 'route_table',
'bgpvpn', 'network_ipam', 'virtual_network', 'routing_policy']
prop_fields = ['virtual_network_properties', 'route_target_list',
'multi_policy_service_chains_enabled', 'is_provider_network',
'fabric_snat']
def me(self, name):
return name in (self.name, 'any')
def __init__(self, name, obj=None, acl_dict=None):
self.name = name
self.network_policys = OrderedDict()
self.routing_policys = {}
self.virtual_machine_interfaces = set()
self.connections = set()
self.routing_instances = set()
self.virtual_networks = set()
self.bgpvpns = set()
self.acl = None
self.is_provider_network = False
self.dynamic_acl = None
self.acl_rule_count = 0
self.multi_policy_service_chains_enabled = None
self.update_vnc_obj(obj)
self.uuid = self.obj.uuid
for acl in self.obj.get_access_control_lists() or []:
if acl_dict:
acl_obj = acl_dict[acl['uuid']]
else:
acl_obj = self.read_vnc_obj(
acl['uuid'], obj_type='access_control_list',
fields=['access_control_list_hash'])
if acl_obj.name == self.obj.name:
self.acl = acl_obj
elif acl_obj.name == 'dynamic':
self.dynamic_acl = acl_obj
self.fabric_snat = False
self.ipams = {}
self._route_target = None
self.rt_list = set()
self.import_rt_list = set()
self.export_rt_list = set()
self.bgpvpn_rt_list = set()
self.bgpvpn_import_rt_list = set()
self.bgpvpn_export_rt_list = set()
self.route_tables = set()
self.service_chains = {}
prop = self.obj.get_virtual_network_properties(
) or VirtualNetworkType()
self.allow_transit = prop.allow_transit
if self.obj.get_fq_name() == common.LINK_LOCAL_VN_FQ_NAME:
default_ri_fq_name = common.LINK_LOCAL_RI_FQ_NAME
else:
default_ri_fq_name = self.obj.fq_name + [self.obj.name]
self._default_ri_name = ':'.join(default_ri_fq_name)
self.multi_policy_service_chains_status_changed = False
self.update(self.obj)
self.update_multiple_refs('virtual_machine_interface', self.obj)
# end __init__
def get_routes(self):
routes = set()
for rt in self.route_tables:
rt_obj = RouteTableST.get(rt)
if rt_obj:
routes |= set(rt_obj.routes)
return routes
# end
def update(self, obj=None):
ret = self.update_vnc_obj(obj)
old_policies = set(self.network_policys.keys())
self.network_policys = OrderedDict()
for policy_ref in self.obj.get_network_policy_refs() or []:
self.add_policy(':'.join(policy_ref['to']), policy_ref.get('attr'))
for policy_name in NetworkPolicyST.get_internal_policies(self.name):
self.add_policy(policy_name)
for policy_name in old_policies - set(self.network_policys.keys()):
policy = NetworkPolicyST.get(policy_name)
if policy:
policy.virtual_networks.discard(self.name)
for policy_name in set(self.network_policys.keys()) - old_policies:
policy = NetworkPolicyST.get(policy_name)
if policy:
policy.virtual_networks.add(self.name)
old_ipams = self.ipams
self.ipams = {}
for ipam_ref in self.obj.get_network_ipam_refs() or []:
subnet = ipam_ref['attr']
ipam_fq_name = ':'.join(ipam_ref['to'])
if self.ipams.get(ipam_fq_name) != subnet:
self.ipams[ipam_fq_name] = subnet
if self.ipams != old_ipams:
self.update_ipams()
prop = self.obj.get_virtual_network_properties(
) or VirtualNetworkType()
self.set_properties(prop)
self.set_route_target_list(self.obj)
self.multi_policy_service_chains_status_changed = (
'multi_policy_service_chains_enabled' in ret)
return ret
# end update
def _update_primary_ri_to_service_ri_connection(self, sc, si_name,
multi_policy_enabled):
primary_ri = self.get_primary_routing_instance()
service_ri_name = self.get_service_name(sc.name, si_name)
service_ri = RoutingInstanceST.get(service_ri_name)
if service_ri is None:
return
if (multi_policy_enabled and
service_ri_name in primary_ri.connections):
primary_ri.delete_connection(service_ri)
# add primary ri's route target to service ri
rt_obj = RouteTargetST.get(self.get_route_target())
service_ri.obj.add_route_target(rt_obj.obj,
InstanceTargetType('import'))
self._vnc_lib.routing_instance_update(service_ri.obj)
elif (not multi_policy_enabled and
service_ri_name not in primary_ri.connections):
primary_ri.add_connection(service_ri)
# delete primary ri's route target from service ri
rt_obj = RouteTargetST.get(self.get_route_target())
service_ri.obj.del_route_target(rt_obj.obj)
self._vnc_lib.routing_instance_update(service_ri.obj)
# end _update_primary_ri_to_service_ri_connection
def check_multi_policy_service_chain_status(self):
if not self.multi_policy_service_chains_status_changed:
return
self.multi_policy_service_chains_status_changed = False
for sc_list in self.service_chains.values():
for sc in sc_list:
if sc is None or not sc.created:
continue
if sc.left_vn == self.name:
si_name = sc.service_list[0]
other_vn_name = sc.right_vn
other_si_name = sc.service_list[-1]
right_si = ServiceInstanceST.get(other_si_name)
elif sc.right_vn == self.name:
si_name = sc.service_list[-1]
other_vn_name = sc.left_vn
other_si_name = sc.service_list[0]
right_si = ServiceInstanceST.get(si_name)
else:
continue
other_vn = VirtualNetworkST.get(other_vn_name)
if not other_vn:
continue
multi_policy_enabled = (
self.multi_policy_service_chains_enabled and
other_vn.multi_policy_service_chains_enabled and
right_si.get_service_mode() != 'in-network-nat')
self._update_primary_ri_to_service_ri_connection(
sc, si_name, multi_policy_enabled)
other_vn._update_primary_ri_to_service_ri_connection(
sc, other_si_name, multi_policy_enabled)
# end check_multi_policy_service_chain_status
def delete_inactive_service_chains(self, old_scs, new_scs=None):
# Delete the service chains that are no longer active
for remote_vn_name in old_scs:
# Get the Remote VNs in this VN's service chain and
# get a list of the remote service chains in the remote
# VNs which has this VNs name.
remote_vn = VirtualNetworkST.get(remote_vn_name)
if remote_vn is None:
remote_service_chain_list = []
else:
remote_service_chain_list = remote_vn.service_chains.get(
self.name)
# Get a list of this VN's service chains which has a
# remote VN name as one of its service endpoints.
# Case 1: If the Service Chain is present in the updated
# SC list (if any), then dont do anythnig.
# Case 2: If the SC is not present in the updated SC
# list (if any), but present in the remote VN
# SC list, then invalidate it and mark it for
# deletion.
# Case 3: If the SC is not present in the updated SC
# list (if any) and not in the remote VN SC list,
# then delete it permanentely since there is no
# VNs that are referring to this SC.
service_chain_list = old_scs[remote_vn_name]
for service_chain in service_chain_list or []:
if new_scs and service_chain in (new_scs.get(remote_vn_name) or
[]):
continue
if service_chain in (remote_service_chain_list or []):
service_chain.destroy()
else:
service_chain.delete()
def delete_obj(self):
for policy_name in self.network_policys:
policy = NetworkPolicyST.get(policy_name)
if not policy:
continue
policy.virtual_networks.discard(self.name)
self.update_multiple_refs('virtual_machine_interface', {})
self.delete_inactive_service_chains(self.service_chains)
for ri_name in self.routing_instances:
RoutingInstanceST.delete(ri_name, True)
if self.acl:
self._vnc_lib.access_control_list_delete(id=self.acl.uuid)
if self.dynamic_acl:
self._vnc_lib.access_control_list_delete(id=self.dynamic_acl.uuid)
self.update_multiple_refs('route_table', {})
self.update_multiple_refs('bgpvpn', {})
self.uve_send(deleted=True)
# end delete_obj
def add_policy(self, policy_name, attrib=None):
# Add a policy ref to the vn. Keep it sorted by sequence number
if attrib is None:
attrib = VirtualNetworkPolicyType(SequenceType(sys.maxint,
sys.maxint))
if attrib.sequence is None:
self._logger.error("Cannot assign policy %s to %s: sequence "
"number is not available" % (policy_name,
self.name))
return False
if self.network_policys.get(policy_name) == attrib:
return False
self.network_policys[policy_name] = attrib
self.network_policys = OrderedDict(sorted(self.network_policys.items(),
key=lambda t:(t[1].sequence.major,
t[1].sequence.minor)))
return True
# end add_policy
def get_primary_routing_instance(self):
return RoutingInstanceST.get(self._default_ri_name)
# end get_primary_routing_instance
def add_connection(self, vn_name):
if vn_name == "any":
self.connections.add("*")
# Need to do special processing for "*"
elif vn_name != self.name:
self.connections.add(vn_name)
# end add_connection
def add_ri_connection(self, vn2_name, primary_ri=None):
vn2 = VirtualNetworkST.get(vn2_name)
if not vn2:
# connection published on receiving <vn2>
return
if self.name in vn2.expand_connections():
ri1 = primary_ri or self.get_primary_routing_instance()
ri2 = vn2.get_primary_routing_instance()
if ri1 and ri2:
ri1.add_connection(ri2)
vn2.uve_send()
# end add_ri_connection
def delete_ri_connection(self, vn2_name):
vn2 = VirtualNetworkST.get(vn2_name)
if vn2 is None:
return
ri1 = self.get_primary_routing_instance()
ri2 = vn2.get_primary_routing_instance()
if ri1 and ri2:
ri1.delete_connection(ri2)
vn2.uve_send()
# end delete_ri_connection
def add_service_chain(self, svn, dvn, proto, prule):
if self.me(dvn):
remote_vn = svn
elif self.me(svn):
remote_vn = dvn
else:
return {}
if self.name == remote_vn:
self._logger.error("Service chain source and dest vn are same: %s"
% self.name)
return None
if remote_vn == 'any':
remote_vns = self.get_vns_in_project()
else:
remote_vns = [remote_vn]
service_chain_ris = {}
for remote_vn in remote_vns:
if remote_vn not in VirtualNetworkST:
self._logger.error("Network %s not found while apply service "
"chain to network %s" % (remote_vn,
self.name))
continue
services = prule.action_list.apply_service
service_chain_list = self.service_chains.setdefault(remote_vn, [])
if self.me(dvn):
service_chain = ServiceChain.find_or_create(
remote_vn, self.name, prule.direction, prule.src_ports,
prule.dst_ports, proto, services)
service_chain_ris[remote_vn] = (
None, self.get_service_name(service_chain.name,
services[-1]))
else:
service_chain = ServiceChain.find_or_create(
self.name, remote_vn, prule.direction, prule.src_ports,
prule.dst_ports, proto, services)
service_chain_ris[remote_vn] = (
self.get_service_name(service_chain.name, services[0]),
None)
if service_chain not in service_chain_list:
service_chain_list.append(service_chain)
return service_chain_ris
# end add_service_chain
def get_vns_in_project(self):
# return a set of all virtual networks with the same parent as self
return set((k) for k, v in self._dict.items()
if (self.name != v.name and
self.obj.get_parent_fq_name() ==
v.obj.get_parent_fq_name()))
# end get_vns_in_project
def create_instance_ip(self, sc_name, family, ipam_obj):
iip_name = sc_name + '-' + family
iip_obj = InstanceIp(name=iip_name, instance_ip_family=family)
iip_obj.set_instance_ip_secondary(True)
iip_obj.add_network_ipam(ipam_obj)
try:
self._vnc_lib.instance_ip_create(iip_obj)
except RefsExistError:
pass
except Exception as e:
self._logger.error(
"Error while allocating ip%s address in network-ipam %s: %s"
% (family, ipam_obj.name, str(e)))
return None, None
iip_obj = self._vnc_lib.instance_ip_read(fq_name=[iip_name])
iip_uuid = iip_obj.get_uuid()
iip_address = iip_obj.get_instance_ip_address()
return iip_uuid, iip_address
# end create_instance_ip
def allocate_service_chain_ip(self, sc_fq_name):
sc_name = sc_fq_name.split(':')[-1]
ip_dict = self._object_db.get_service_chain_ip(sc_name)
if ip_dict:
return ip_dict.get('ip_address'), ip_dict.get('ipv6_address')
ip_dict = {}
sc_ipam_obj = ServiceChain._get_service_chain_ipam()
v4_iip_uuid, v4_address = \
self.create_instance_ip(sc_name, 'v4', ipam_obj=sc_ipam_obj)
if v4_iip_uuid:
ip_dict['ip_address'] = v4_address
ip_dict['ip_uuid'] = v4_iip_uuid
v6_iip_uuid, v6_address = \
self.create_instance_ip(sc_name, 'v6', ipam_obj=sc_ipam_obj)
if v6_iip_uuid:
ip_dict['ipv6_address'] = v6_address
ip_dict['ipv6_uuid'] = v6_iip_uuid
if v4_iip_uuid is None and v6_iip_uuid is None:
return None, None
self._object_db.add_service_chain_ip(sc_name, ip_dict)
return v4_address, v6_address
# end allocate_service_chain_ip
def free_service_chain_ip(self, sc_fq_name):
sc_name = sc_fq_name.split(':')[-1]
ip_dict = self._object_db.get_service_chain_ip(sc_name)
if not ip_dict:
return
if ip_dict.get('ip_uuid'):
try:
self._vnc_lib.instance_ip_delete(id=ip_dict['ip_uuid'])
except NoIdError:
pass
elif ip_dict.get('ip_address'):
# To Handle old scheme
try:
self._vnc_lib.virtual_network_ip_free(self.obj, ip_dict[ip_address])
except NoIdError:
pass
if ip_dict.get('ipv6_uuid'):
try:
self._vnc_lib.instance_ip_delete(id=ip_dict['ipv6_uuid'])
except NoIdError:
pass
elif ip_dict.get('ipv6_address'):
# To Handle old scheme
try:
self._vnc_lib.virtual_network_ip_free(self.obj, ip_dict[ipv6_address])
except NoIdError:
pass
self._object_db.remove_service_chain_ip(sc_name)
# end free_service_chain_ip
def get_route_target(self):
if self._route_target is None:
ri = self.get_primary_routing_instance()
if ri is None:
return
ri_name = ri.get_fq_name_str()
self._route_target = self._object_db.get_route_target(ri_name)
rtgt_name = "target:%s:%d" % (
GlobalSystemConfigST.get_autonomous_system(),
self._route_target)
return rtgt_name
# end get_route_target
def set_route_target(self, rtgt_name):
_, asn, target = rtgt_name.split(':')
if int(asn) != GlobalSystemConfigST.get_autonomous_system():
return
self._route_target = int(target)
# end set_route_target
@staticmethod
def _ri_needs_external_rt(vn_name, ri_name):
sc_id = RoutingInstanceST._get_service_id_from_ri(ri_name)
if sc_id is None:
return False
sc = ServiceChain.get(sc_id)
if sc is None:
return False
if vn_name == sc.left_vn:
return ri_name.endswith(sc.service_list[0].replace(':', '_'))
elif vn_name == sc.right_vn:
return ri_name.endswith(sc.service_list[-1].replace(':', '_'))
return False
# end _ri_needs_external_rt
def update_ipams(self):
# update prefixes on service chain routing instances
for sc_list in self.service_chains.values():
for service_chain in sc_list:
service_chain.update_ipams(self.name)
# end update_ipams
def expand_connections(self):
if '*' in self.connections:
conn = self.connections - set(['*']) | self.get_vns_in_project()
for vn in self._dict.values():
if self.name in vn.connections:
conn.add(vn.name)
return conn
return self.connections
# end expand_connections
def set_properties(self, properties):
if self.allow_transit == properties.allow_transit:
# If allow_transit didn't change, then we have nothing to do
return False
self.allow_transit = properties.allow_transit
ret = False
for sc_list in self.service_chains.values():
for service_chain in sc_list:
if not service_chain.created:
continue
if self.name == service_chain.left_vn:
si_name = service_chain.service_list[0]
elif self.name == service_chain.right_vn:
si_name = service_chain.service_list[-1]
else:
continue
ri_name = self.get_service_name(service_chain.name, si_name)
ri = RoutingInstanceST.get(ri_name)
if not ri:
continue
if self.allow_transit:
# if the network is now a transit network, add the VN's
# route target to all service RIs
ri.update_route_target_list(
rt_add_export=[self.get_route_target()])
else:
# if the network is not a transit network any more, then we
# need to delete the route target from service RIs
ri.update_route_target_list(rt_del=[self.get_route_target()])
ret = True
return ret
# end set_properties
def get_route_target_lists(self, obj):
rt_list = obj.get_route_target_list()
if rt_list:
self.rt_list = set(rt_list.get_route_target())
else:
self.rt_list = set()
rt_list = obj.get_import_route_target_list()
if rt_list:
self.import_rt_list = set(rt_list.get_route_target())
else:
self.import_rt_list = set()
rt_list = obj.get_export_route_target_list()
if rt_list:
self.export_rt_list = set(rt_list.get_route_target())
else:
self.export_rt_list = set()
# Get BGP VPN's route targets associated to that network
self.bgpvpn_rt_list = set()
self.bgpvpn_import_rt_list = set()
self.bgpvpn_export_rt_list = set()
for bgpvpn_name in self.bgpvpns:
bgpvpn = BgpvpnST.get(bgpvpn_name)
if bgpvpn is not None:
self.bgpvpn_rt_list |= bgpvpn.rt_list
self.bgpvpn_import_rt_list |= bgpvpn.import_rt_list
self.bgpvpn_export_rt_list |= bgpvpn.export_rt_list
# if any RT exists in both import and export, just add it to rt_list
self.rt_list |= self.import_rt_list & self.export_rt_list
# if any RT exists in rt_list, remove it from import/export lists
self.import_rt_list -= self.rt_list
self.export_rt_list -= self.rt_list
# end get_route_target_lists
def set_route_target_list(self, obj):
old_rt_list = self.rt_list.copy()
old_import_rt_list = self.import_rt_list.copy()
old_export_rt_list = self.export_rt_list.copy()
old_bgpvpn_rt_list = self.bgpvpn_rt_list.copy()
old_bgpvpn_import_rt_list = self.bgpvpn_import_rt_list.copy()
old_bgpvpn_export_rt_list = self.bgpvpn_export_rt_list.copy()
self.get_route_target_lists(obj)
rt_add = ((self.rt_list - old_rt_list) |
(self.bgpvpn_rt_list - old_bgpvpn_rt_list))
rt_add_import = ((self.import_rt_list - old_import_rt_list) |
(self.bgpvpn_import_rt_list -
old_bgpvpn_import_rt_list))
rt_add_export = ((self.export_rt_list - old_export_rt_list) |
(self.bgpvpn_export_rt_list -
old_bgpvpn_export_rt_list))
rt_del = (
((old_rt_list - self.rt_list) |
(old_import_rt_list - self.import_rt_list) |
(old_export_rt_list - self.export_rt_list) |
(old_bgpvpn_rt_list - self.bgpvpn_rt_list) |
(old_bgpvpn_import_rt_list - self.bgpvpn_import_rt_list) |
(old_bgpvpn_export_rt_list - self.bgpvpn_export_rt_list)) -
(self.rt_list | self.import_rt_list | self.export_rt_list |
self.bgpvpn_rt_list | self.bgpvpn_import_rt_list |
self.bgpvpn_export_rt_list)
)
if not (rt_add or rt_add_export or rt_add_import or rt_del):
return False
for rt in itertools.chain(rt_add, rt_add_export, rt_add_import):
RouteTargetST.locate(rt)
ri = self.get_primary_routing_instance()
if ri:
ri.update_route_target_list(rt_add=rt_add,
rt_add_import=rt_add_import,
rt_add_export=rt_add_export,
rt_del=rt_del)
for ri_name in self.routing_instances:
if self._ri_needs_external_rt(self.name, ri_name):
service_ri = RoutingInstanceST.get(ri_name)
service_ri.update_route_target_list(rt_add_export=rt_add,
rt_del=rt_del)
for route in self.get_routes():
prefix = route.prefix
nexthop = route.next_hop
(left_ri, _) = self._get_routing_instance_from_route(nexthop)
if left_ri is None:
continue
left_ri.update_route_target_list(rt_add_import=rt_add,
rt_del=rt_del)
static_route_entries = left_ri.obj.get_static_route_entries()
update = False
for static_route in static_route_entries.get_route() or []:
if static_route.prefix != prefix:
continue
for rt in rt_del:
if rt in static_route.route_target:
static_route.route_target.remove(rt)
update = True
for rt in rt_add:
if rt not in static_route.route_target:
static_route.route_target.append(rt)
update = True
if static_route.route_target == []:
static_route_entries.delete_route(static_route)
update = True
if update:
left_ri.obj.set_static_route_entries(static_route_entries)
self._vnc_lib.routing_instance_update(left_ri.obj)
for rt in rt_del - (rt_add | rt_add_export | rt_add_import):
try:
RouteTargetST.delete_vnc_obj(rt)
except RefsExistError:
# if other routing instances are referring to this target,
# it will be deleted when those instances are deleted
pass
return True
# end set_route_target_list
# next-hop in a route contains fq-name of a service instance, which must
# be an auto policy instance. This function will get the left vn for that
# service instance and get the primary and service routing instances
def _get_routing_instance_from_route(self, next_hop):
si = ServiceInstanceST.get(next_hop)
if si is None:
self._logger.error("Cannot find service instance %s" % next_hop)
return (None, None)
if not si.left_vn_str:
self._logger.error("%s: route table next hop service instance "
"must have left virtual network" % self.name)
return (None, None)
left_vn = VirtualNetworkST.get(si.left_vn_str)
if left_vn is None:
self._logger.error("Virtual network %s not present"
% si.left_vn_str)
return (None, None)
return (left_vn.get_primary_routing_instance(), si)
# end _get_routing_instance_from_route
def uve_send(self, deleted=False):
vn_trace = UveVirtualNetworkConfig(name=self.name,
connected_networks=[],
partially_connected_networks=[],
routing_instance_list=[],
total_acl_rules=0)
if deleted:
vn_trace.deleted = True
vn_msg = UveVirtualNetworkConfigTrace(data=vn_trace,
sandesh=self._sandesh)
vn_msg.send(sandesh=self._sandesh)
return
vn_trace.total_acl_rules = self.acl_rule_count
for ri_name in self.routing_instances:
vn_trace.routing_instance_list.append(ri_name)
for rhs in self.expand_connections():
rhs_vn = VirtualNetworkST.get(rhs)
if rhs_vn and self.name in rhs_vn.expand_connections():
# two way connection
vn_trace.connected_networks.append(rhs)
else:
# one way connection
vn_trace.partially_connected_networks.append(rhs)
# end for
for rhs in self.service_chains:
rhs_vn = VirtualNetworkST.get(rhs)
if rhs_vn and self.name in rhs_vn.service_chains:
# two way connection
vn_trace.connected_networks.append(rhs)
else:
# one way connection
vn_trace.partially_connected_networks.append(rhs)
# end for
vn_msg = UveVirtualNetworkConfigTrace(data=vn_trace,
sandesh=self._sandesh)
vn_msg.send(sandesh=self._sandesh)
# end uve_send
def get_service_name(self, sc_name, si_name):
name = "service-%s-%s" % (sc_name, si_name)
return "%s:%s" % (self.obj.get_fq_name_str(), name.replace(':', '_'))
# end get_service_name
@staticmethod
def get_analyzer_vn_and_ip(analyzer_name):
vn_analyzer = None
ip_analyzer = None
si = ServiceInstanceST.get(analyzer_name)
if si is None:
return (None, None)
vm_analyzer = list(si.virtual_machines)