// 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.config.core.v3;

import "google/protobuf/wrappers.proto";

import "udpa/annotations/status.proto";

option java_package = "io.envoyproxy.envoy.config.core.v3";
option java_outer_classname = "SocketCmsgHeadersProto";
option java_multiple_files = true;
option go_package = "github.com/envoyproxy/go-control-plane/envoy/config/core/v3;corev3";
option (udpa.annotations.file_status).package_version_status = ACTIVE;

// [#protodoc-title: Socket CMSG headers]

// Configuration for socket cmsg headers.
// See `:ref:CMSG <https://man7.org/linux/man-pages/man3/cmsg.3.html>`_ for further information.
message SocketCmsgHeaders {
  // cmsg level. Default is unset.
  google.protobuf.UInt32Value level = 1;

  // cmsg type. Default is unset.
  google.protobuf.UInt32Value type = 2;

  // Expected size of cmsg value. Default is zero.
  uint32 expected_size = 3;
}
