Move chromeos/tpm_* to chromeos/tpm

chromeos/tpm_token_info_getter.h

-// Copyright 2014 The Chromium 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 CHROMEOS_TPM_TOKEN_INFO_GETTER_H_
-#define CHROMEOS_TPM_TOKEN_INFO_GETTER_H_
-
-#include <string>
-
-#include "base/callback.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/weak_ptr.h"
-#include "base/time/time.h"
-#include "chromeos/chromeos_export.h"
-#include "chromeos/dbus/dbus_method_call_status.h"
-
-namespace base {
-class TaskRunner;
-}
-
-namespace chromeos {
-class CryptohomeClient;
-}
-
-namespace chromeos {
-
-// Information retrieved from cryptohome by TPMTokenInfoGetter.
-// For invalid token |token_name| and |user_pin| will be empty, while
-// |token_slot_id| will be set to -1.
-struct TPMTokenInfo {
-  // Default constructor creates token info for disabled TPM.
-  TPMTokenInfo();
-  ~TPMTokenInfo();
-
-  bool tpm_is_enabled;
-  std::string token_name;
-  std::string user_pin;
-  int token_slot_id;
-};
-
-// Class for getting a user or the system TPM token info from cryptohome during
-// TPM token loading.
-class CHROMEOS_EXPORT TPMTokenInfoGetter {
- public:
-  using TPMTokenInfoCallback = base::Callback<void(const TPMTokenInfo& info)>;
-
-  // Factory method for TPMTokenInfoGetter for a user token.
-  static scoped_ptr<TPMTokenInfoGetter> CreateForUserToken(
-      const std::string& user_id,
-      CryptohomeClient* cryptohome_client,
-      const scoped_refptr<base::TaskRunner>& delayed_task_runner);
-
-  // Factory method for TPMTokenGetter for the system token.
-  static scoped_ptr<TPMTokenInfoGetter> CreateForSystemToken(
-      CryptohomeClient* cryptohome_client,
-      const scoped_refptr<base::TaskRunner>& delayed_task_runner);
-
-  ~TPMTokenInfoGetter();
-
-  // Starts getting TPM token info. Should be called at most once.
-  // |callback| will be called when all the info is fetched.
-  // The object may get deleted before |callback| is called, which is equivalent
-  // to cancelling the info getting (in which case |callback| will never get
-  // called).
-  void Start(const TPMTokenInfoCallback& callback);
-
- private:
-  enum Type {
-    TYPE_SYSTEM,
-    TYPE_USER
-  };
-
-  enum State {
-    STATE_INITIAL,
-    STATE_STARTED,
-    STATE_TPM_ENABLED,
-    STATE_DONE
-  };
-
-  TPMTokenInfoGetter(
-      Type type,
-      const std::string& user_id,
-      CryptohomeClient* cryptohome_client,
-      const scoped_refptr<base::TaskRunner>& delayed_task_runner);
-
-  // Continues TPM token info getting procedure by starting the task associated
-  // with the current TPMTokenInfoGetter state.
-  void Continue();
-
-  // If token initialization step fails (e.g. if tpm token is not yet ready)
-  // schedules the initialization step retry attempt after a timeout.
-  void RetryLater();
-
-  // Cryptohome methods callbacks.
-  void OnTpmIsEnabled(DBusMethodCallStatus call_status,
-                      bool tpm_is_enabled);
-  void OnPkcs11GetTpmTokenInfo(DBusMethodCallStatus call_status,
-                               const std::string& token_name,
-                               const std::string& user_pin,
-                               int token_slot_id);
-
-  // The task runner used to run delayed tasks when retrying failed Cryptohome
-  // calls.
-  scoped_refptr<base::TaskRunner> delayed_task_runner_;
-
-  Type type_;
-  State state_;
-
-  // The user id associated with the TPMTokenInfoGetter. Empty for system token.
-  std::string user_id_;
-
-  TPMTokenInfoCallback callback_;
-
-  // The current request delay before the next attempt to initialize the
-  // TPM. Will be adapted after each attempt.
-  base::TimeDelta tpm_request_delay_;
-
-  CryptohomeClient* cryptohome_client_;
-
-  base::WeakPtrFactory<TPMTokenInfoGetter> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(TPMTokenInfoGetter);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_TPM_TOKEN_INFO_GETTER_H_