1//
2// Copyright (C) 2015 The Android Open Source Project
3//
4// Licensed under the Apache License, Version 2.0 (the "License");
5// you may not use this file except in compliance with the License.
6// You may obtain a copy of the License at
7//
8//      http://www.apache.org/licenses/LICENSE-2.0
9//
10// Unless required by applicable law or agreed to in writing, software
11// distributed under the License is distributed on an "AS IS" BASIS,
12// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13// See the License for the specific language governing permissions and
14// limitations under the License.
15//
16
17#ifndef TPM_MANAGER_SERVER_LOCAL_DATA_STORE_H_
18#define TPM_MANAGER_SERVER_LOCAL_DATA_STORE_H_
19
20#include "tpm_manager/common/tpm_manager.pb.h"
21
22namespace tpm_manager {
23
24// LocalDataStore is an interface class that provides access to read and write
25// local system data.
26class LocalDataStore {
27 public:
28  LocalDataStore() = default;
29  virtual ~LocalDataStore() = default;
30
31  // Reads local |data| from persistent storage. If no local data exists, the
32  // output is an empty protobuf and the method succeeds. Returns true on
33  // success.
34  virtual bool Read(LocalData* data) = 0;
35
36  // Writes local |data| to persistent storage. Returns true on success.
37  virtual bool Write(const LocalData& data) = 0;
38};
39
40}  // namespace tpm_manager
41
42#endif  // TPM_MANAGER_SERVER_LOCAL_DATA_STORE_H_
43