/
config_db.py
3164 lines (2828 loc) · 124 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 sys
reload(sys)
sys.setdefaultencoding('UTF8')
import copy
import uuid
import re
import cfgm_common as common
from netaddr import IPNetwork, IPAddress
from cfgm_common.exceptions import *
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
try:
# python2.7
from collections import OrderedDict
except:
# python2.6
from ordereddict import OrderedDict
import jsonpickle
_PROTO_STR_TO_NUM = {
'icmp': '1',
'tcp': '6',
'udp': '17',
'any': 'any',
}
SGID_MIN_ALLOC = common.SGID_MIN_ALLOC
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))
return None
else:
if entries is None:
try:
DBBaseST._vnc_lib.access_control_list_delete(id=acl_obj.uuid)
except NoIdError:
pass
return None
# if entries did not change, just return the object
if acl_obj.get_access_control_list_entries() == entries:
return acl_obj
# Set new value of entries on the ACL
acl_obj.set_access_control_list_entries(entries)
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())
return acl_obj
# end _access_control_list_update
class DBBaseST(DBBase):
obj_type = __name__
_indexed_by_name = True
_uuid_fq_name_map = {}
def evaluate(self):
# Implement in the derived class
pass
@classmethod
def locate(cls, key, *args):
obj = super(DBBaseST, cls).locate(key, *args)
if obj.obj.uuid not in cls._uuid_fq_name_map:
cls._uuid_fq_name_map[obj.obj.uuid] = key
return obj
# end locate
@classmethod
def delete(cls, key):
obj = cls.get(key)
if obj is None:
return
if obj.obj.uuid in cls._uuid_fq_name_map:
del cls._uuid_fq_name_map[obj.obj.uuid]
obj.delete_obj()
del cls._dict[key]
# end delete
@classmethod
def get_by_uuid(cls, uuid, *args):
return cls.get(cls._uuid_fq_name_map.get(uuid))
def handle_st_object_req(self):
return sandesh.StObject(object_type=self.obj_type, object=self.uuid,
object_fq_name=self.name)
# end DBBaseST
class GlobalSystemConfigST(DBBaseST):
_dict = {}
obj_type = 'global_system_config'
_autonomous_system = 0
_ibgp_auto_mesh = None
def __init__(self, uuid, obj):
self.name = uuid
self.uuid = uuid
self.update(obj)
# end __init__
def update(self, obj=None):
self.obj = obj or self.read_vnc_obj(uuid=self.uuid)
self.update_autonomous_system(self.obj.autonomous_system)
self.update_ibgp_auto_mesh(self.obj.ibgp_auto_mesh)
# end update
@classmethod
def get_autonomous_system(cls):
return cls._autonomous_system
# end get_autonomous_system
@classmethod
def get_ibgp_auto_mesh(cls):
return cls._ibgp_auto_mesh
# end get_ibgp_auto_mesh
@classmethod
def update_autonomous_system(cls, new_asn):
cls._autonomous_system = int(new_asn)
# end update_autonomous_system
def evaluate(self):
for vn in VirtualNetworkST.values():
vn.update_autonomous_system(self._autonomous_system)
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
# end evaluate
@classmethod
def update_ibgp_auto_mesh(cls, value):
if value is None:
value = True
cls._ibgp_auto_mesh = value
# end update_ibgp_auto_mesh
# end GlobalSystemConfigST
# a struct to store attributes related to Virtual Networks needed by
# schema transformer
class VirtualNetworkST(DBBaseST):
_dict = {}
obj_type = 'virtual_network'
def __init__(self, name, obj=None, acl_dict=None):
self.obj = obj or self.read_vnc_obj(fq_name=name)
self.name = name
self.uuid = self.obj.uuid
self.network_policys = OrderedDict()
self.virtual_machine_interfaces = set()
self.connections = set()
self.routing_instances = set()
self.acl = None
self.dynamic_acl = None
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')
if acl_obj.name == self.obj.name:
self.acl = acl_obj
elif acl_obj.name == 'dynamic':
self.dynamic_acl = acl_obj
self.ipams = {}
rt_list = self.obj.get_route_target_list()
if rt_list:
self.rt_list = set(rt_list.get_route_target())
for rt in self.rt_list:
RouteTargetST.locate(rt)
else:
self.rt_list = set()
self._route_target = None
self.route_tables = set()
self.routes = {}
self.service_chains = {}
prop = self.obj.get_virtual_network_properties(
) or VirtualNetworkType()
self.allow_transit = prop.allow_transit
nid = self.obj.get_virtual_network_network_id()
if nid is None:
nid = prop.network_id or self._cassandra.alloc_vn_id(name) + 1
self.obj.set_virtual_network_network_id(nid)
self._vnc_lib.virtual_network_update(self.obj)
if self.obj.get_fq_name() == common.IP_FABRIC_VN_FQ_NAME:
default_ri_fq_name = common.IP_FABRIC_RI_FQ_NAME
elif 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.update(self.obj)
self.update_multiple_refs('virtual_machine_interface', self.obj)
# end __init__
def update(self, obj=None):
self.obj = obj or self.read_vnc_obj(uuid=self.uuid)
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 not policy:
continue
policy.virtual_networks.discard(self.name)
for policy_name in set(self.network_policys.keys()) - old_policies:
policy = NetworkPolicyST.get(policy_name)
if not policy:
continue
policy.virtual_networks.add(self.name)
self.update_multiple_refs('route_table', self.obj)
self.ipams = {}
for ipam_ref in self.obj.get_network_ipam_refs() or []:
subnet = ipam_ref['attr']
self.ipams[':'.join(ipam_ref['to'])] = subnet
self.update_ipams()
prop = self.obj.get_virtual_network_properties(
) or VirtualNetworkType()
self.set_properties(prop)
self.set_route_target_list(self.obj.get_route_target_list())
# end update
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', {})
for service_chain_list in self.service_chains.values():
for service_chain in service_chain_list:
service_chain.destroy()
for ri_name in self.routing_instances:
RoutingInstanceST.delete(ri_name)
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)
nid = self.obj.get_virtual_network_network_id()
if nid is None:
props = self.obj.get_virtual_network_properties()
if props:
nid = props.network_id
if nid:
self._cassandra.free_vn_id(nid - 1)
self.update_multiple_refs('route_table', {})
self.update_route_table()
self.uve_send(deleted=True)
# end delete_obj
def update_autonomous_system(self, new_asn):
if (self.obj.get_fq_name() in [common.IP_FABRIC_VN_FQ_NAME,
common.LINK_LOCAL_VN_FQ_NAME]):
# for ip-fabric and link-local VN, we don't need to update asn
return
ri = self.get_primary_routing_instance()
if ri is None:
return
ri_fq_name = ri.get_fq_name_str()
rtgt_num = self._cassandra.get_route_target(ri_fq_name)
old_rtgt_name = self._route_target
new_rtgt_name = "target:%s:%d" % (new_asn, rtgt_num)
if old_rtgt_name == new_rtgt_name:
return
new_rtgt_obj = RouteTargetST.locate(new_rtgt_name)
old_rtgt_obj = RouteTarget(old_rtgt_name)
inst_tgt_data = InstanceTargetType()
ri.obj = ri.read_vnc_obj(fq_name=ri_fq_name)
ri.obj.del_route_target(old_rtgt_obj)
ri.obj.add_route_target(new_rtgt_obj.obj, inst_tgt_data)
self._vnc_lib.routing_instance_update(ri.obj)
ri.route_target = new_rtgt_name
self._route_target = new_rtgt_name
for (prefix, nexthop) in self.routes.items():
left_ri = self._get_routing_instance_from_route(nexthop)
if left_ri is None:
continue
left_ri.update_route_target_list([new_rtgt_name], [old_rtgt_name],
"import")
static_route_entries = left_ri.obj.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)
self._vnc_lib.routing_instance_update(left_ri.obj)
try:
RouteTargetST.delete(old_rtgt_obj.get_fq_name()[0])
except RefsExistError:
# if other routing instances are referring to this target,
# it will be deleted when those instances are deleted
pass
# end update_autonomous_system
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
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)))
# 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, remote_vn, left_vn, right_vn, direction,
sp_list, dp_list, proto, service_list):
service_chain_list = self.service_chains.setdefault(remote_vn, [])
service_chain = ServiceChain.find_or_create(left_vn, right_vn,
direction, sp_list, dp_list, proto,
service_list)
if service_chain.service_list != service_list:
if service_chain.created:
service_chain.destroy()
service_chain.service_list = service_list
service_chain.create()
else:
service_chain.service_list = service_list
if service_chain not in service_chain_list:
service_chain_list.append(service_chain)
return service_chain.name
# 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 allocate_service_chain_ip(self, sc_fq_name):
sc_name = sc_fq_name.split(':')[-1]
v4_address, v6_address = self._cassandra.get_service_chain_ip(sc_name)
if v4_address or v6_address:
return v4_address, v6_address
try:
v4_address = self._vnc_lib.virtual_network_ip_alloc(
self.obj, count=1)[0]
except (NoIdError, RefsExistError) as e:
self._logger.error(
"Error while allocating ipv4 in network %s: %s", self.name,
str(e))
try:
v6_address = self._vnc_lib.virtual_network_ip_alloc(
self.obj, count=1, family='v6')[0]
except (NoIdError, RefsExistError) as e:
self._logger.error(
"Error while allocating ipv6 in network %s: %s", self.name,
str(e))
if v4_address is None and v6_address is None:
return None, None
self._cassandra.add_service_chain_ip(sc_name, v4_address, v6_address)
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]
v4_address, v6_address = self._cassandra.get_service_chain_ip(sc_name)
ip_addresses = []
if v4_address:
ip_addresses.append(v4_address)
if v6_address:
ip_addresses.append(v6_address)
if not ip_addresses:
return
self._cassandra.remove_service_chain_ip(sc_name)
try:
self._vnc_lib.virtual_network_ip_free(self.obj, ip_addresses)
except NoIdError:
pass
# end free_service_chain_ip
def get_route_target(self):
return self._route_target
# end get_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
self.allow_transit = properties.allow_transit
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([self.get_route_target()], [],
import_export='export')
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([], [self.get_route_target()])
# end set_properties
def set_route_target_list(self, rt_list):
ri = self.get_primary_routing_instance()
old_rt_list = self.rt_list
if rt_list:
self.rt_list = set(rt_list.get_route_target())
else:
self.rt_list = set()
rt_add = self.rt_list - old_rt_list
rt_del = old_rt_list - self.rt_list
if len(rt_add) == 0 and len(rt_del) == 0:
return
for rt in rt_add:
RouteTargetST.locate(rt)
ri.update_route_target_list(rt_add, 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, rt_del,
import_export='export')
for (prefix, nexthop) in self.routes.items():
left_ri = self._get_routing_instance_from_route(nexthop)
if left_ri is None:
continue
left_ri.update_route_target_list(rt_add, rt_del,
import_export='import')
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:
try:
RouteTargetST.delete(rt)
except RefsExistError:
# if other routing instances are referring to this target,
# it will be deleted when those instances are deleted
pass
# 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
if not si.auto_policy:
self._logger.error("%s: route table next hop must be service "
"instance with auto policy", self.name)
return None
if (not si.left_vn_str or not si.right_vn_str):
self._logger.error("%s: route table next hop service instance "
"must have left and right virtual networks",
self.name)
return 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
sc = ServiceChain.find(si.left_vn_str, si.right_vn_str, '<>',
[PortType()], [PortType()], 'any')
if sc is None:
self._logger.error("Service chain between %s and %s not present",
si.left_vn_str, si.right_vn_str)
return None
left_ri_name = left_vn.get_service_name(sc.name, next_hop)
return RoutingInstanceST.get(left_ri_name)
# end _get_routing_instance_from_route
def add_route(self, prefix, next_hop):
self.routes[prefix] = next_hop
left_ri = self._get_routing_instance_from_route(next_hop)
if left_ri is None:
self._logger.error(
"left routing instance is none for %s", next_hop)
return
service_info = left_ri.obj.get_service_chain_information()
if service_info is None:
self._logger.error(
"Service chain info not found for %s", left_ri.name)
return
sc_address = service_info.get_service_chain_address()
static_route_entries = left_ri.obj.get_static_route_entries(
) or StaticRouteEntriesType()
update = False
for static_route in static_route_entries.get_route() or []:
if prefix == static_route.prefix:
for rt in self.rt_list | set([self.get_route_target()]):
if rt not in static_route.route_target:
static_route.route_target.append(rt)
update = True
break
else:
rt_list = list(self.rt_list | set([self.get_route_target()]))
static_route = StaticRouteType(prefix=prefix, next_hop=sc_address,
route_target=rt_list)
static_route_entries.add_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)
left_ri.update_route_target_list(
rt_add=self.rt_list | set([self.get_route_target()]),
import_export="import")
# end add_route
def delete_route(self, prefix):
if prefix not in self.routes:
return
next_hop = self.routes[prefix]
del self.routes[prefix]
left_ri = self._get_routing_instance_from_route(next_hop)
if left_ri is None:
return
left_ri.update_route_target_list(rt_add=set(),
rt_del=self.rt_list | set(
[self.get_route_target()]),
import_export="import")
update = False
static_route_entries = left_ri.obj.get_static_route_entries()
if static_route_entries is None:
return
for static_route in static_route_entries.get_route() or []:
if static_route.prefix != prefix:
continue
for rt in self.rt_list | set([self.get_route_target()]):
if rt in static_route.route_target:
static_route.route_target.remove(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)
# end delete_route
def update_route_table(self):
stale = {}
for prefix in self.routes:
stale[prefix] = True
for rt_name in self.route_tables:
route_table = RouteTableST.get(rt_name)
if route_table is None or route_table.routes is None:
continue
for route in route_table.routes or []:
if route.prefix in self.routes:
stale.pop(route.prefix, None)
if route.next_hop == self.routes[route.prefix]:
continue
self.delete_route(route.prefix)
# end if route.prefix
self.add_route(route.prefix, route.next_hop)
# end for route
# end for route_table
for prefix in stale:
self.delete_route(prefix)
# end update_route_table
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
if self.acl:
vn_trace.total_acl_rules += len(
self.acl.get_access_control_list_entries().get_acl_rule())
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)
if not vm_analyzer:
return (None, None)
vm_analyzer_obj = VirtualMachineST.get(vm_analyzer[0])
if vm_analyzer_obj is None:
return (None, None)
vmis = vm_analyzer_obj.virtual_machine_interfaces
for vmi_name in vmis:
vmi = VirtualMachineInterfaceST.get(vmi_name)
if vmi and vmi.service_interface_type == 'left':
vn_analyzer = vmi.virtual_network
ip_analyzer = vmi.get_any_instance_ip_address()
break
# end for vmi_ref
return (vn_analyzer, ip_analyzer)
# end get_analyzer_vn_and_ip
def process_analyzer(self, action):
analyzer_name = action.mirror_to.analyzer_name
try:
(vn_analyzer, ip) = self.get_analyzer_vn_and_ip(analyzer_name)
if ip:
action.mirror_to.set_analyzer_ip_address(ip)
if vn_analyzer:
self._logger.debug("Mirror: adding connection: %s to %s",
self.name, vn_analyzer)
self.add_connection(vn_analyzer)
vn_obj = VirtualNetworkST.get(vn_analyzer)
if vn_obj:
vn_obj.add_connection(self.name)
else:
self._logger.error("Mirror: %s: no analyzer vn for %s",
self.name, analyzer_name)
except NoIdError:
return
# end process_analyzer
@staticmethod
def protocol_policy_to_acl(pproto):
# convert policy proto input(in str) to acl proto (num)
if pproto is None:
return 'any'
if pproto.isdigit():
return pproto
return _PROTO_STR_TO_NUM.get(pproto.lower())
# end protocol_policy_to_acl
def policy_to_acl_rule(self, prule, dynamic):
result_acl_rule_list = AclRuleListST(dynamic=dynamic)
saddr_list = prule.src_addresses
sp_list = prule.src_ports
daddr_list = prule.dst_addresses
dp_list = prule.dst_ports
rule_uuid = prule.get_rule_uuid()
arule_proto = self.protocol_policy_to_acl(prule.protocol)
if arule_proto is None:
# TODO log unknown protocol
return result_acl_rule_list
if prule.action_list is None:
self._logger.error("No action specified in policy rule "
"attached to %s. Ignored.", self.name)
return result_acl_rule_list
for saddr in saddr_list:
saddr_match = copy.deepcopy(saddr)
svn = saddr.virtual_network
spol = saddr.network_policy
s_cidr = saddr.subnet
if svn == "local":
svn = self.name
saddr_match.virtual_network = self.name
for daddr in daddr_list:
daddr_match = copy.deepcopy(daddr)
dvn = daddr.virtual_network
dpol = daddr.network_policy
d_cidr = daddr.subnet
if dvn == "local":
dvn = self.name
daddr_match.virtual_network = self.name
if dvn in [self.name, 'any']:
remote_network_name = svn
elif svn in [self.name, 'any']:
remote_network_name = dvn
elif not dvn and dpol:
dp_obj = NetworkPolicyST.get(dpol)
if self.name in dp_obj.virtual_networks:
remote_network_name = svn
daddr_match.network_policy = None
daddr_match.virtual_network = self.name
else:
self._logger.error(
"network policy rule attached to %s has src = %s,"
" dst = %s. Ignored.", self.name, svn or spol,
dvn or dpol)
continue
elif not svn and spol:
sp_obj = NetworkPolicyST.get(spol)
if self.name in sp_obj.virtual_networks:
remote_network_name = dvn
daddr_match.network_policy = None
saddr_match.virtual_network = self.name
else:
self._logger.error(
"network policy rule attached to %s has src = %s,"
" dst = %s. Ignored.", self.name, svn or spol,
dvn or dpol)
continue
elif (not svn and not dvn and not spol and not dpol and
s_cidr and d_cidr):
if prule.action_list.apply_service:
self._logger.error(
"service chains not allowed in cidr only rules "
"network %s, src = %s, dst = %s. Ignored.",
self.name, s_cidr, d_cidr)
continue
else:
self._logger.error("network policy rule attached to %s"
"has svn = %s, dvn = %s. Ignored.",
self.name, svn, dvn)
continue
service_list = None
if prule.action_list.apply_service != []:
if remote_network_name == self.name:
self._logger.error("Service chain source and dest "
"vn are same: %s", self.name)
continue
remote_vn = VirtualNetworkST.get(remote_network_name)
if remote_vn is None:
self._logger.error(
"Network %s not found while apply service chain "
"to network %s", remote_network_name, self.name)
continue
service_list = copy.deepcopy(
prule.action_list.apply_service)
sc_name = self.add_service_chain(remote_network_name, svn,
dvn, prule.direction, sp_list, dp_list, arule_proto,
service_list)
for sp in sp_list:
for dp in dp_list:
action = copy.deepcopy(prule.action_list)
if (service_list and svn in [self.name, 'any']):
service_ri = self.get_service_name(sc_name,
service_list[0])
action.set_assign_routing_instance(service_ri)
else:
action.assign_routing_instance = None
if action.mirror_to and action.mirror_to.analyzer_name:
if ((svn in [self.name, 'any']) or
(dvn in [self.name, 'any'])):
self.process_analyzer(action)
if saddr_match.network_policy:
pol = NetworkPolicyST.get(saddr_match.network_policy)
if not pol:
self._logger.error(
"Policy %s not found while applying policy "
"to network %s", saddr_match.network_policy,
self.name)
continue
sa_list = [AddressType(virtual_network=x)
for x in pol.virtual_networks]
else:
sa_list = [saddr_match]
if daddr_match.network_policy:
pol = NetworkPolicyST.get(daddr_match.network_policy)
if not pol:
self._logger.error(
"Policy %s not found while applying policy "
"to network %s", daddr_match.network_policy,
self.name)
continue
da_list = [AddressType(virtual_network=x)
for x in pol.virtual_networks]
else:
da_list = [daddr_match]
for sa in sa_list:
for da in da_list:
match = MatchConditionType(arule_proto,
sa, sp,
da, dp)
acl = AclRuleType(match, action, rule_uuid)
result_acl_rule_list.append(acl)
if ((prule.direction == "<>") and
(sa != da or sp != dp)):
rmatch = MatchConditionType(arule_proto,
da, dp,
sa, sp)
raction = copy.deepcopy(action)
if (service_list and dvn in [self.name, 'any']):
service_ri = self.get_service_name(
sc_name, service_list[-1])
raction.set_assign_routing_instance(
service_ri)
else:
raction.assign_routing_instance = None
acl = AclRuleType(rmatch, raction, rule_uuid)
result_acl_rule_list.append(acl)
# end for dp
# end for sp
# end for daddr
# end for saddr
return result_acl_rule_list
# end policy_to_acl_rule
def update_pnf_presence(self):
has_pnf = False
for ri_name in self.routing_instances:
if ri_name == self._default_ri_name:
continue
ri = RoutingInstanceST.get(ri_name)
if ri is None:
continue
if ri.obj.get_routing_instance_has_pnf():
has_pnf = True
break
default_ri = RoutingInstanceST.get(self._default_ri_name)
if (default_ri and
default_ri.obj.get_routing_instance_has_pnf() != has_pnf):
default_ri.obj.set_routing_instance_has_pnf(has_pnf)
self._vnc_lib.routing_instance_update(default_ri.obj)
# end update_pnf_presence
def evaluate(self):
old_virtual_network_connections = self.expand_connections()
old_service_chains = self.service_chains
self.connections = set()