68 lines
2.8 KiB
Python
68 lines
2.8 KiB
Python
# Copyright (c) 2017-18 NEC Technologies India Pvt Ltd.
|
|
# 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 neutron_lib.exceptions import qos as qos_exc
|
|
from neutron_lib.services.qos import constants as qos_consts
|
|
|
|
|
|
def check_bandwidth_rule_conflict(policy, rule_data):
|
|
"""Implementation of the QoS Rule checker.
|
|
|
|
This function checks if the new rule to be associated with the policy
|
|
doesn't conflict with the existing rules.
|
|
Raises an exception if conflict is identified.
|
|
"""
|
|
for rule in policy.rules:
|
|
if rule.rule_type == qos_consts.RULE_TYPE_DSCP_MARKING:
|
|
# Skip checks if Rule is DSCP
|
|
continue
|
|
if rule.rule_type == qos_consts.RULE_TYPE_MINIMUM_BANDWIDTH:
|
|
if "max_kbps" in rule_data and (
|
|
int(rule.min_kbps) > int(rule_data["max_kbps"])):
|
|
raise qos_exc.QoSRuleParameterConflict(
|
|
rule_value=rule_data["max_kbps"],
|
|
policy_id=policy["id"],
|
|
existing_rule=rule.rule_type,
|
|
existing_value=rule.min_kbps)
|
|
elif rule.rule_type == qos_consts.RULE_TYPE_BANDWIDTH_LIMIT:
|
|
if "min_kbps" in rule_data and (
|
|
int(rule.max_kbps) < int(rule_data["min_kbps"])):
|
|
raise qos_exc.QoSRuleParameterConflict(
|
|
rule_value=rule_data["min_kbps"],
|
|
policy_id=policy["id"],
|
|
existing_rule=rule.rule_type,
|
|
existing_value=rule.max_kbps)
|
|
|
|
|
|
def check_rules_conflict(policy, rule_obj):
|
|
"""Implementation of the QoS Policy rules conflicts.
|
|
|
|
This function checks if the new rule to be associated with policy
|
|
doesn't have any duplicate rule already in policy.
|
|
Raises an exception if conflict is identified.
|
|
"""
|
|
|
|
for rule in policy.rules:
|
|
# NOTE(slaweq): we don't want to raise exception when compared rules
|
|
# have got same id as it means that it is probably exactly the same
|
|
# rule so there is no conflict
|
|
if rule.id == getattr(rule_obj, "id", None):
|
|
continue
|
|
if rule.duplicates(rule_obj):
|
|
raise qos_exc.QoSRulesConflict(
|
|
new_rule_type=rule_obj.rule_type,
|
|
rule_id=rule.id,
|
|
policy_id=policy.id)
|