// Copyright 2022-2024 ETSI OSG/SDG TeraFlowSDN (TFS) (https://tfs.etsi.org/)
//
// 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 l3_centralizedattackdetector;

import "context.proto";

service L3Centralizedattackdetector {
  // Analyze single input to the ML model in the CAD component
  rpc AnalyzeConnectionStatistics (L3CentralizedattackdetectorMetrics) returns (StatusMessage) {}

  // Analyze a batch of inputs to the ML model in the CAD component
  rpc AnalyzeBatchConnectionStatistics (L3CentralizedattackdetectorBatchInput) returns (StatusMessage) {}

  // Get the list of features used by the ML model in the CAD component
  rpc GetFeaturesIds (context.Empty) returns (AutoFeatures) {}

  // Sets the list of attack IPs in order to be used to compute the prediction accuracy of the
  // ML model in the CAD component in case of testing the ML model.
  rpc SetAttackIPs (AttackIPs) returns (context.Empty) {}
}

message Feature {
	float feature = 1;
}

message L3CentralizedattackdetectorMetrics {
	// Input sent by the DAD compoenent to the ML model integrated in the CAD component.

	// Machine learning model features
	repeated Feature features = 1;	
	ConnectionMetadata connection_metadata = 2;

}

message ConnectionMetadata {
	string ip_o = 1;
	string port_o = 2;
	string ip_d = 3;
	string port_d = 4;
	string flow_id = 5;
	context.ServiceId service_id = 6;
	context.EndPointId endpoint_id = 7;
	string protocol = 8;
	float time_start = 9;
	float time_end = 10;
}

// Collection of values representing ML features
message AutoFeatures {
	repeated float auto_features = 1;
}

// Collection (batch) of model inputs that will be sent to the model
message L3CentralizedattackdetectorBatchInput {
	repeated L3CentralizedattackdetectorMetrics metrics = 1;
}

message StatusMessage {
	string message = 1;
}

message AttackIPs {
	repeated string attack_ips = 1;
}