--- /dev/null
+//
+// Copyright 2016 gRPC 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.
+//
+
+#ifndef GRPC_CORE_EXT_FILTERS_MESSAGE_SIZE_MESSAGE_SIZE_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_MESSAGE_SIZE_MESSAGE_SIZE_FILTER_H
+
+#include <grpc/support/port_platform.h>
+
+#include "src/core/ext/filters/client_channel/service_config.h"
+#include "src/core/lib/channel/channel_stack.h"
+
+extern const grpc_channel_filter grpc_message_size_filter;
+
+namespace grpc_core {
+
+class MessageSizeParsedConfig : public ServiceConfig::ParsedConfig {
+ public:
+ struct message_size_limits {
+ int max_send_size;
+ int max_recv_size;
+ };
+
+ MessageSizeParsedConfig(int max_send_size, int max_recv_size) {
+ limits_.max_send_size = max_send_size;
+ limits_.max_recv_size = max_recv_size;
+ }
+
+ const message_size_limits& limits() const { return limits_; }
+
+ private:
+ message_size_limits limits_;
+};
+
+class MessageSizeParser : public ServiceConfig::Parser {
+ public:
+ UniquePtr<ServiceConfig::ParsedConfig> ParsePerMethodParams(
+ const grpc_json* json, grpc_error** error) override;
+
+ static void Register();
+
+ static size_t ParserIndex();
+};
+
+} // namespace grpc_core
+
+#endif /* GRPC_CORE_EXT_FILTERS_MESSAGE_SIZE_MESSAGE_SIZE_FILTER_H */