| // 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. |
| |
| #ifndef TRUNKS_TRUNKS_PROXY_H_ |
| #define TRUNKS_TRUNKS_PROXY_H_ |
| |
| #include <string> |
| |
| #include <base/callback.h> |
| #include <chromeos/chromeos_export.h> |
| #include <dbus/bus.h> |
| #include <dbus/message.h> |
| #include <dbus/object_proxy.h> |
| |
| #include "trunks/command_transceiver.h" |
| |
| namespace trunks { |
| |
| typedef base::Callback<void(const std::string& response)> SendCommandCallback; |
| |
| // TrunksProxy is a fully async implementation of the CommandTransceiver |
| // interface. Services that want to talk to the TPM through trunksd can |
| // get an instance of this singleton proxy. Then they can use the SendCommand |
| // method to send TPM commands to trunksd to forward to the TPM handle. |
| class CHROMEOS_EXPORT TrunksProxy: public CommandTransceiver { |
| public: |
| TrunksProxy(); |
| virtual ~TrunksProxy(); |
| // This method Initializes the dbus client in TrunksProxy. Returns true on |
| // success and false on failure. |
| virtual bool Init(); |
| // This method forwards |command| to trunksd via dbus, and calls |callback| |
| // when the TPM is done processing |command|. |
| virtual void SendCommand(const std::string& command, |
| const SendCommandCallback& callback); |
| virtual uint32_t SendCommandAndWait(const std::string& command, |
| std::string* response); |
| |
| private: |
| static void OnResponse(const SendCommandCallback& callback, |
| dbus::Response* response); |
| |
| scoped_refptr<dbus::Bus> bus_; |
| dbus::ObjectProxy* object_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TrunksProxy); |
| }; |
| |
| } // namespace trunks |
| |
| #endif // TRUNKS_TRUNKS_PROXY_H_ |