1 //
2 // Copyright (C) 2020 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 #pragma once
17 
18 #include <memory>
19 
20 #include <tss2/tss2_tcti.h>
21 
22 #include "host/commands/secure_env/tpm.h"
23 
24 namespace cuttlefish {
25 
26 /*
27  * Exposes a TSS2_TCTI_CONTEXT for interacting with a TPM device node.
28  */
29 class DeviceTpm : public Tpm {
30 public:
31   DeviceTpm(const std::string& path);
32   ~DeviceTpm() = default;
33 
34   TSS2_TCTI_CONTEXT* TctiContext() override;
35 private:
36   std::unique_ptr<TSS2_TCTI_CONTEXT, void(*)(TSS2_TCTI_CONTEXT*)> tpm_;
37 };
38 
39 }  // namespace cuttlefish
40