/*
 * Copyright (C) 2018 The Android Open Source Project
 *
 * 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.
 */

// We check in the prebuilt nanopb protobuf file under the current folder
// because the compile tool chain using trusty/user/base/make/compile_proto.mk
// might not work under certain environment with lower version of python
// protobuf installed. You need to generate and check in the new protobuf file
// if you change this file in order for the change to take effect!
//
// To generate the file using the tool chain in trusty tree, add the following
// command to rules.mk:
//
// PB_GEN_DIR := [Your generation folder]
// include trusty/user/base/make/compile_proto.mk
// $(eval $(call compile_proto,$(KEYMASTER_DIR)/keymaster_attributes.proto,$(PB_GEN_DIR)))
//
// The generated .pb.c and .pb.h file would be under PB_GEN_DIR, include them
// to the source path.
//
// To generate the file using your own tool chain, please follow the guide at
// https://github.com/nanopb/nanopb.
// Please check the nanopb version in trusty tree at external/nanopb-c to make
// sure you are using the same nanopb version.

syntax = "proto2";

import "nanopb.proto";

message KeymasterAttributes {
  optional bytes uuid = 1 [(nanopb).max_size=32];
  optional bytes product_id = 2 [(nanopb).max_size=16];
};

message AttestationKey {
  optional bytes key = 1 [(nanopb).max_size=2048];
  repeated AttestationCert certs = 2 [(nanopb).max_count=3];
};

message AttestationCert {
  required bytes content = 1 [(nanopb).max_size=2048];
}