| // Copyright 2015 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 TPM_MANAGER_SERVER_TPM_STATUS_H_ |
| #define TPM_MANAGER_SERVER_TPM_STATUS_H_ |
| |
| #include <stdint.h> |
| |
| #include <vector> |
| |
| namespace tpm_manager { |
| |
| // TpmStatus is an interface class that reports status information for some kind |
| // of TPM device. |
| class TpmStatus { |
| public: |
| enum TpmOwnershipStatus { |
| // TPM is not owned. The owner password is empty. |
| kTpmUnowned = 0, |
| |
| // TPM is pre-owned. The owner password is set to a well-known password, but |
| // TPM initialization is not completed yet. |
| kTpmPreOwned, |
| |
| // TPM initialization is completed. The owner password is set to a randomly- |
| // generated password. |
| kTpmOwned, |
| }; |
| |
| TpmStatus() = default; |
| virtual ~TpmStatus() = default; |
| |
| // Returns true iff the TPM is enabled. |
| virtual bool IsTpmEnabled() = 0; |
| |
| // Gets current TPM ownership status and stores it in |status|. The status |
| // will be kTpmOwned iff the entire TPM initialization process has finished, |
| // including all the password set up. |
| // |
| // Sends out a signal to the dbus if the TPM state is changed to owned from a |
| // different state. |
| // |
| // Returns whether the operation is successful or not. |
| virtual bool CheckAndNotifyIfTpmOwned(TpmOwnershipStatus* status) = 0; |
| |
| // Reports the current state of the TPM dictionary attack logic. |
| virtual bool GetDictionaryAttackInfo(uint32_t* counter, |
| uint32_t* threshold, |
| bool* lockout, |
| uint32_t* seconds_remaining) = 0; |
| |
| // Get TPM hardware and software version information. |
| virtual bool GetVersionInfo(uint32_t* family, |
| uint64_t* spec_level, |
| uint32_t* manufacturer, |
| uint32_t* tpm_model, |
| uint64_t* firmware_version, |
| std::vector<uint8_t>* vendor_specific) = 0; |
| |
| // Marks the random owner password is set. |
| // |
| // NOTE: This method should be used by TPM 1.2 only. |
| virtual void MarkRandomOwnerPasswordSet() = 0; |
| }; |
| |
| } // namespace tpm_manager |
| |
| #endif // TPM_MANAGER_SERVER_TPM_STATUS_H_ |