// SPDX-License-Identifier: ISC
//
// fpm.proto
//
// @copyright Copyright (C) 2016 Sproute Networks, Inc.
//
// @author Avneesh Sachdev <avneesh@sproute.com>
//
// Permission to use, copy, modify, and/or distribute this software
// for any purpose with or without fee is hereby granted, provided
// that the above copyright notice and this permission notice appear
// in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
// WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
// WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
// AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
// CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
// OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
// NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
// CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//

syntax = "proto2";

//
// Protobuf definitions pertaining to the Forwarding Plane Manager component.
//

package fpm;

import "qpb/qpb.proto";

//
// A Nexthop for a route. It indicates how packets to a given prefix
// should be forwarded (for instance, send them out of a specified
// interface to a specified address).
//
message Nexthop {
  optional qpb.IfIdentifier if_id = 2;
  optional qpb.L3Address address = 3;
}

message RouteKey {
  optional qpb.L3Prefix prefix = 1;
}

message DeleteRoute {
  required uint32 vrf_id = 1;
  required qpb.AddressFamily address_family = 2;
  required qpb.SubAddressFamily sub_address_family = 3;
  required RouteKey key = 4;
}

enum RouteType {
  UNKNOWN = 0;
  NORMAL = 1;
  UNREACHABLE = 2;
  BLACKHOLE = 3;
}

message AddRoute {
  required uint32 vrf_id = 1;
  required qpb.AddressFamily address_family = 2;
  required qpb.SubAddressFamily sub_address_family = 3;
  required RouteKey key = 4;

  optional RouteType route_type = 5;

  required qpb.Protocol protocol = 6;

  required int32 metric = 8;

  repeated Nexthop nexthops = 9;
}

//
// Any message from the FPM.
//
message Message {
  enum Type {
    UNKNOWN_MSG = 0;
    ADD_ROUTE = 1;
    DELETE_ROUTE = 2;
  };

  optional Type type = 1;

  optional AddRoute add_route = 2;
  optional DeleteRoute delete_route = 3;
}
