feat(policy): update policy.proto

// Copyright 2021-2023 H2020 TeraFlow (https://www.teraflow-h2020.eu/)

//

// 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.

syntax = "proto3";

package policy;

// Action

message PolicyRuleAction {

  PolicyRuleActionEnum action = 1;

  repeated string parameters = 2;

}

enum PolicyRuleActionEnum {

  POLICYRULE_ACTION_NO_ACTION = 0;

  POLICYRULE_ACTION_SET_DEVICE_STATUS = 1;

  POLICYRULE_ACTION_ADD_SERVICE_CONFIGRULE = 2;

  POLICYRULE_ACTION_ADD_SERVICE_CONSTRAINT = 3;

}

// Condition

message PolicyRuleCondition {

  monitoring.KpiId kpiId = 1;

  PolicyRuleConditionComparisonOperator polRuleConditionComparisonOperator = 2;

  NumericalOperator numericalOperator = 2;

  monitoring.KpiValue kpiValue = 3;

}

// Operator to be used when comparing Kpis with condition values

enum PolicyRuleConditionComparisonOperator {

  EQUAL = 0;              // Kpi is equal with value

  NOT_EQUAL = 1;          // Kpi is not equal with value

  LESS_THAN = 2;          // Kpi is less than value

  LESS_THAN_EQUAL = 3;    // Kpi is less than or equal with value

  GREATER_THAN = 4;       // Kpi is greater than value

  GREATER_THAN_EQUAL = 5; // Kpi is less than or equal with value

enum NumericalOperator {

  POLICYRULE_CONDITION_NUMERICAL_UNDEFINED = 0;          // Kpi numerical operator undefined

  POLICYRULE_CONDITION_NUMERICAL_EQUAL = 1;              // Kpi is equal with value

  POLICYRULE_CONDITION_NUMERICAL_NOT_EQUAL = 2;          // Kpi is not equal with value

  POLICYRULE_CONDITION_NUMERICAL_LESS_THAN = 3;          // Kpi is less than value

  POLICYRULE_CONDITION_NUMERICAL_LESS_THAN_EQUAL = 4;    // Kpi is less than or equal with value

  POLICYRULE_CONDITION_NUMERICAL_GREATER_THAN = 5;       // Kpi is greater than value

  POLICYRULE_CONDITION_NUMERICAL_GREATER_THAN_EQUAL = 6; // Kpi is less than or equal with value

}

// Operator to be used when evaluating each condition

enum PolicyRuleConditionEvaluationOperator {

  AND = 0;  // Logical AND operator

  OR = 1;   // Logical OR operator

enum BooleanOperator {

  POLICYRULE_CONDITION_BOOLEAN_UNDEFINED = 0;  // Boolean operator undefined

  POLICYRULE_CONDITION_BOOLEAN_AND = 1;        // Boolean AND operator

  POLICYRULE_CONDITION_BOOLEAN_OR = 2;         // Boolean OR operator

}

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package policy;

import "context.proto";

import "policy-condition.proto";

import "policy-action.proto";

service PolicyService {

  rpc PolicyAdd (PolicyRule) returns (PolicyRuleState) {}

  RuleState policyRuleState = 2;

}

message PolicyRuleVariable {

  string policyRuleVariable = 1;

}

message PolicyRuleValue {

  string policyRuleValue = 1;

}

// IETF draft: Framework for Use of ECA (Event Condition Action) in Network Self Management

//     Source: https://datatracker.ietf.org/doc/draft-bwd-netmod-eca-framework/

// Event

  context.Event event = 1;

}

// Condition

message PolicyRuleCondition {

  PolicyRuleVariable polRuleConditionVar = 1;

  PolicyRuleValue polRuleConditionVal = 2;

}

// Action

message PolicyRuleAction {

  PolicyRuleVariable polRuleActionVar = 1;

  PolicyRuleValue polRuleActionVal = 2;

}

// Policy rule partially complies with IETF’s:

//     RFC 3060: https://datatracker.ietf.org/doc/html/rfc3060

//     RFC 3460: https://datatracker.ietf.org/doc/html/rfc3460

  // Basic policy rule attributes

  PolicyRuleId policyRuleId = 1;

  PolicyRuleType policyRuleType = 2;

  uint32 PolicyRulePriority = 3;

  uint32 priority = 3;

  // Event-Condition-Action model

  PolicyRuleEvent event = 4;                         // A single event triggers the policy

  repeated PolicyRuleCondition polRuleConditionList = 5; // One or more conditions must be met

  repeated PolicyRuleAction polRuleActionList = 6;       // One or more actions should be applied

  repeated PolicyRuleCondition conditionList = 5;    // One or more conditions must be met

  BooleanOperator booleanOperator = 6;               // Evaluation operator to be used

  repeated PolicyRuleAction actionList = 7;          // One or more actions should be applied

  // Affected services and devices

  repeated context.ServiceId serviceList = 7;

  repeated context.DeviceId deviceList = 8;

  // Affected service and devices

  context.ServiceId serviceId = 8;

  repeated context.DeviceId deviceList = 9;

}

// A list of policy rules

../../../../../proto/policy-action.proto

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