blob: 73f61f767d90812dcefccdcfe01705f03355c648 [file] [log] [blame]
// Copyright 2014 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "trunks/trunks_factory.h"
#include <memory>
#include <string>
#include <base/macros.h>
#include <base/time/time.h>
#include "trunks/command_transceiver.h"
#include "trunks/tpm_cache.h"
#include "trunks/trunks_export.h"
namespace trunks {
// TrunksFactoryImpl is the default TrunksFactory implementation. This class is
// thread-safe with the exception of Initialize() but created objects are not
// necessarily thread-safe. Example usage:
// TrunksFactoryImpl factory;
// factory.Initialize(true /*failure_is_fatal*/);
// Tpm* tpm = factory.GetTpm();
class TRUNKS_EXPORT TrunksFactoryImpl : public TrunksFactory {
// Uses an IPC proxy as the default CommandTransceiver.
// TrunksFactoryImpl does not take ownership of |transceiver|. This
// transceiver is forwarded down to the Tpm instance maintained by
// this factory. It is assumed that the |transceiver| is already initialized.
explicit TrunksFactoryImpl(CommandTransceiver* transceiver);
TrunksFactoryImpl(const TrunksFactoryImpl&) = delete;
TrunksFactoryImpl& operator=(const TrunksFactoryImpl&) = delete;
~TrunksFactoryImpl() override;
// Initialize the factory. This must be called before any other methods.
// Returns true on success.
bool Initialize();
// TrunksFactory methods.
Tpm* GetTpm() const override;
TpmCache* GetTpmCache() const override;
std::unique_ptr<TpmState> GetTpmState() const override;
std::unique_ptr<TpmUtility> GetTpmUtility() const override;
std::unique_ptr<AuthorizationDelegate> GetPasswordAuthorization(
const std::string& password) const override;
std::unique_ptr<SessionManager> GetSessionManager() const override;
std::unique_ptr<HmacSession> GetHmacSession() const override;
std::unique_ptr<PolicySession> GetPolicySession() const override;
std::unique_ptr<PolicySession> GetTrialSession() const override;
std::unique_ptr<BlobParser> GetBlobParser() const override;
// In case of getting a response code requesting a retry, set the maximum
// number or retries and delay between each retry when sending a command
// to the underlying transceiver using CommandTransceiver::SendCommandAndWait.
void set_max_command_retries(int max_command_retries);
void set_command_retry_delay(base::TimeDelta command_retry_delay);
class PostProcessingTransceiver;
bool IsDefaultTransceiverUsed() const {
return default_transceiver_ != nullptr;
std::unique_ptr<CommandTransceiver> default_transceiver_;
std::unique_ptr<PostProcessingTransceiver> transceiver_;
std::unique_ptr<TpmCache> tpm_cache_;
std::unique_ptr<Tpm> tpm_;
bool initialized_ = false;
} // namespace trunks