// Copyright 2025 Envoy Project Authors
//
// 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 envoy.extensions.filters.http.geoip.v3;

import "envoy/config/core/v3/extension.proto";

import "xds/annotations/v3/status.proto";

import "udpa/annotations/status.proto";
import "validate/validate.proto";

option java_package = "io.envoyproxy.envoy.extensions.filters.http.geoip.v3";
option java_outer_classname = "GeoipProto";
option java_multiple_files = true;
option go_package = "github.com/envoyproxy/go-control-plane/envoy/extensions/filters/http/geoip/v3;geoipv3";
option (udpa.annotations.file_status).package_version_status = ACTIVE;
option (xds.annotations.v3.file_status).work_in_progress = true;

// [#protodoc-title: Geoip]
// Geoip :ref:`configuration overview <config_http_filters_geoip>`.
// [#extension: envoy.filters.http.geoip]

message Geoip {
  message XffConfig {
    // The number of additional ingress proxy hops from the right side of the
    // :ref:`config_http_conn_man_headers_x-forwarded-for` HTTP header to trust when
    // determining the origin client's IP address. The default is zero if this option
    // is not specified. See the documentation for
    // :ref:`config_http_conn_man_headers_x-forwarded-for` for more information.
    uint32 xff_num_trusted_hops = 1;
  }

  // If set, the :ref:`xff_num_trusted_hops <envoy_v3_api_field_extensions.filters.http.geoip.v3.Geoip.XffConfig.xff_num_trusted_hops>` field will be used to determine
  // trusted client address from ``x-forwarded-for`` header.
  // Otherwise, the immediate downstream connection source address will be used.
  // [#next-free-field: 2]
  XffConfig xff_config = 1;

  // Geoip driver specific configuration which depends on the driver being instantiated.
  // See the geoip drivers for examples:
  //
  // - :ref:`MaxMindConfig <envoy_v3_api_msg_extensions.geoip_providers.maxmind.v3.MaxMindConfig>`
  // [#extension-category: envoy.geoip_providers]
  config.core.v3.TypedExtensionConfig provider = 3 [(validate.rules).message = {required: true}];
}
