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# Copyright (c) 2015 OpenStack Foundation
# All Rights Reserved.
#
# 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.
from networking_odl.common import constants as odl_const
from networking_odl.db import db
def _is_valid_update_operation(session, row):
# Check if there are older updates in the queue
if db.check_for_older_ops(session, row):
return False
# Check for a pending or processing create operation on this uuid
if db.check_for_pending_or_processing_ops(
session, row.object_uuid, odl_const.ODL_CREATE):
return False
return True
def validate_network_operation(session, row):
"""Validate the network operation based on dependencies.
Validate network operation depending on whether it's dependencies
are still in 'pending' or 'processing' state. e.g.
"""
if row.operation == odl_const.ODL_DELETE:
# Check for any pending or processing create or update
# ops on this uuid itself
if db.check_for_pending_or_processing_ops(
session, row.object_uuid, [odl_const.ODL_UPDATE,
odl_const.ODL_CREATE]):
return False
# Check for dependent operations
if db.check_for_pending_delete_ops_with_parent(
session, odl_const.ODL_SUBNET, row.object_uuid):
return False
if db.check_for_pending_delete_ops_with_parent(
session, odl_const.ODL_PORT, row.object_uuid):
return False
if db.check_for_pending_delete_ops_with_parent(
session, odl_const.ODL_ROUTER, row.object_uuid):
return False
elif (row.operation == odl_const.ODL_UPDATE and
not _is_valid_update_operation(session, row)):
return False
return True
def validate_subnet_operation(session, row):
"""Validate the subnet operation based on dependencies.
Validate subnet operation depending on whether it's dependencies
are still in 'pending' or 'processing' state. e.g.
"""
if row.operation in (odl_const.ODL_CREATE, odl_const.ODL_UPDATE):
network_id = row.data['network_id']
# Check for pending or processing network operations
if db.check_for_pending_or_processing_ops(session, network_id):
return False
if (row.operation == odl_const.ODL_UPDATE and
not _is_valid_update_operation(session, row)):
return False
elif row.operation == odl_const.ODL_DELETE:
# Check for any pending or processing create or update
# ops on this uuid itself
if db.check_for_pending_or_processing_ops(
session, row.object_uuid, [odl_const.ODL_UPDATE,
odl_const.ODL_CREATE]):
return False
# Check for dependent operations
if db.check_for_pending_delete_ops_with_parent(
session, odl_const.ODL_PORT, row.object_uuid):
return False
return True
def validate_port_operation(session, row):
"""Validate port operation based on dependencies.
Validate port operation depending on whether it's dependencies
are still in 'pending' or 'processing' state. e.g.
"""
if row.operation in (odl_const.ODL_CREATE, odl_const.ODL_UPDATE):
network_id = row.data['network_id']
# Check for pending or processing network operations
ops = db.check_for_pending_or_processing_ops(session, network_id)
# Check for pending subnet operations.
for fixed_ip in row.data['fixed_ips']:
ip_ops = db.check_for_pending_or_processing_ops(
session, fixed_ip['subnet_id'])
ops = ops or ip_ops
if ops:
return False
if (row.operation == odl_const.ODL_UPDATE and
not _is_valid_update_operation(session, row)):
return False
elif row.operation == odl_const.ODL_DELETE:
# Check for any pending or processing create or update
# ops on this uuid itself
if db.check_for_pending_or_processing_ops(
session, row.object_uuid, [odl_const.ODL_UPDATE,
odl_const.ODL_CREATE]):
return False
return True
def validate_router_operation(session, row):
"""Validate router operation based on dependencies.
Validate router operation depending on whether it's dependencies
are still in 'pending' or 'processing' state.
"""
if row.operation in (odl_const.ODL_CREATE, odl_const.ODL_UPDATE):
if row.data['gw_port_id'] is not None:
if db.check_for_pending_or_processing_ops(session,
row.data['gw_port_id']):
return False
if (row.operation == odl_const.ODL_UPDATE and
not _is_valid_update_operation(session, row)):
return False
elif row.operation == odl_const.ODL_DELETE:
# Check for any pending or processing create or update
# operations on this uuid.
if db.check_for_pending_or_processing_ops(session, row.object_uuid,
[odl_const.ODL_UPDATE,
odl_const.ODL_CREATE]):
return False
# Check that dependent port delete operation has completed.
if db.check_for_pending_delete_ops_with_parent(
session, odl_const.ODL_PORT, row.object_uuid):
return False
# Check that dependent floatingip delete operation has completed.
if db.check_for_pending_delete_ops_with_parent(
session, odl_const.ODL_FLOATINGIP, row.object_uuid):
return False
# Check that dependent router interface remove operation has completed.
if db.check_for_pending_remove_ops_with_parent(
session, row.object_uuid):
return False
return True
def validate_floatingip_operation(session, row):
"""Validate floatingip operation based on dependencies.
Validate floating IP operation depending on whether it's dependencies
are still in 'pending' or 'processing' state.
"""
if row.operation in (odl_const.ODL_CREATE, odl_const.ODL_UPDATE):
network_id = row.data.get('floating_network_id')
if network_id is not None:
if not db.check_for_pending_or_processing_ops(session, network_id):
port_id = row.data.get('port_id')
if port_id is not None:
if db.check_for_pending_or_processing_ops(session,
port_id):
return False
else:
return False
router_id = row.data.get('router_id')
if router_id is not None:
if db.check_for_pending_or_processing_ops(session, router_id):
return False
if (row.operation == odl_const.ODL_UPDATE and
not _is_valid_update_operation(session, row)):
return False
elif row.operation == odl_const.ODL_DELETE:
# Check for any pending or processing create or update
# ops on this uuid itself
if db.check_for_pending_or_processing_ops(session, row.object_uuid,
[odl_const.ODL_UPDATE,
odl_const.ODL_CREATE]):
return False
return True
def validate_router_interface_operation(session, row):
"""Validate router_interface operation based on dependencies.
Validate router_interface operation depending on whether it's dependencies
are still in 'pending' or 'processing' state.
"""
if row.operation == odl_const.ODL_ADD:
# Verify that router event has been completed.
if db.check_for_pending_or_processing_ops(session, row.data['id']):
return False
# TODO(rcurran): Check for port_id?
if db.check_for_pending_or_processing_ops(session,
row.data['subnet_id']):
return False
elif row.operation == odl_const.ODL_REMOVE:
if db.check_for_pending_or_processing_add(session, row.data['id'],
row.data['subnet_id']):
return False
return True
def validate_security_group_operation(session, row):
"""Validate security_group operation based on dependencies.
Validate security_group operation depending on whether it's dependencies
are still in 'pending' or 'processing' state. e.g.
"""
return True
def validate_security_group_rule_operation(session, row):
"""Validate security_group_rule operation based on dependencies.
Validate security_group_rule operation depending on whether it's
dependencies are still in 'pending' or 'processing' state. e.g.
"""
return True
_VALIDATION_MAP = {
odl_const.ODL_NETWORK: validate_network_operation,
odl_const.ODL_SUBNET: validate_subnet_operation,
odl_const.ODL_PORT: validate_port_operation,
odl_const.ODL_ROUTER: validate_router_operation,
odl_const.ODL_ROUTER_INTF: validate_router_interface_operation,
odl_const.ODL_FLOATINGIP: validate_floatingip_operation,
odl_const.ODL_SG: validate_security_group_operation,
odl_const.ODL_SG_RULE: validate_security_group_rule_operation,
}
def validate(session, row):
"""Validate resource dependency in journaled operations.
:param session: db session
:param row: entry in journal entry to be validated
"""
return _VALIDATION_MAP[row.object_type](session, row)
def register_validator(object_type, validator):
"""Register validator function for given resource.
:param object_type: neutron resource type
:param validator: function to be registered which validates resource
dependencies
"""
assert object_type not in _VALIDATION_MAP
_VALIDATION_MAP[object_type] = validator
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