1// 2// Copyright (C) 2014 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 TRUNKS_TPM_SIMULATOR_HANDLE_H_ 18#define TRUNKS_TPM_SIMULATOR_HANDLE_H_ 19 20#include "trunks/command_transceiver.h" 21 22#include <string> 23#include <vector> 24 25#include "trunks/error_codes.h" 26 27namespace trunks { 28 29// Sends command requests to an in-process software TPM. All commands are 30// sent synchronously. The SendCommand method is supported but does not return 31// until a response is received and the callback has been called. Command and 32// response data are opaque to this class; it performs no validation. 33// 34// Example: 35// TpmSimulatorHandle handle; 36// if (!handle.Init()) {...} 37// std::string response = handle.SendCommandAndWait(command); 38class TpmSimulatorHandle : public CommandTransceiver { 39 public: 40 TpmSimulatorHandle(); 41 ~TpmSimulatorHandle() override; 42 43 // Initializes a TpmSimulatorHandle instance. This method must be called 44 // successfully before any other method. Returns true on success. 45 bool Init() override; 46 47 // CommandTranceiver methods. 48 void SendCommand(const std::string& command, 49 const ResponseCallback& callback) override; 50 std::string SendCommandAndWait(const std::string& command) override; 51 52 private: 53 std::vector<unsigned char> command_buffer; 54 DISALLOW_COPY_AND_ASSIGN(TpmSimulatorHandle); 55}; 56 57} // namespace trunks 58 59#endif // TRUNKS_TPM_SIMULATOR_HANDLE_H_ 60