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_TRUNKS_FACTORY_IMPL_H_ 18#define TRUNKS_TRUNKS_FACTORY_IMPL_H_ 19 20#include "trunks/trunks_factory.h" 21 22#include <memory> 23#include <string> 24 25#include <base/macros.h> 26 27#include "trunks/command_transceiver.h" 28#include "trunks/trunks_export.h" 29 30namespace trunks { 31 32// TrunksFactoryImpl is the default TrunksFactory implementation. This class is 33// thread-safe with the exception of Initialize() but created objects are not 34// necessarily thread-safe. Example usage: 35// 36// TrunksFactoryImpl factory; 37// factory.Initialize(true /*failure_is_fatal*/); 38// Tpm* tpm = factory.GetTpm(); 39class TRUNKS_EXPORT TrunksFactoryImpl : public TrunksFactory { 40 public: 41 // Uses an IPC proxy as the default CommandTransceiver. 42 TrunksFactoryImpl(); 43 // TrunksFactoryImpl does not take ownership of |transceiver|. This 44 // transceiver is forwarded down to the Tpm instance maintained by 45 // this factory. It is assumed that the |transceiver| is already initialized. 46 explicit TrunksFactoryImpl(CommandTransceiver* transceiver); 47 ~TrunksFactoryImpl() override; 48 49 // Initialize the factory. This must be called before any other methods. 50 // Returns true on success. 51 bool Initialize(); 52 53 // TrunksFactory methods. 54 Tpm* GetTpm() const override; 55 std::unique_ptr<TpmState> GetTpmState() const override; 56 std::unique_ptr<TpmUtility> GetTpmUtility() const override; 57 std::unique_ptr<AuthorizationDelegate> GetPasswordAuthorization( 58 const std::string& password) const override; 59 std::unique_ptr<SessionManager> GetSessionManager() const override; 60 std::unique_ptr<HmacSession> GetHmacSession() const override; 61 std::unique_ptr<PolicySession> GetPolicySession() const override; 62 std::unique_ptr<PolicySession> GetTrialSession() const override; 63 std::unique_ptr<BlobParser> GetBlobParser() const override; 64 65 private: 66 std::unique_ptr<CommandTransceiver> default_transceiver_; 67 CommandTransceiver* transceiver_; 68 std::unique_ptr<Tpm> tpm_; 69 bool initialized_ = false; 70 71 DISALLOW_COPY_AND_ASSIGN(TrunksFactoryImpl); 72}; 73 74} // namespace trunks 75 76#endif // TRUNKS_TRUNKS_FACTORY_IMPL_H_ 77