| // 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_TPM_STATE_IMPL_H_ |
| #define TRUNKS_TPM_STATE_IMPL_H_ |
| |
| #include "trunks/tpm_state.h" |
| |
| #include <map> |
| #include <string> |
| #include <vector> |
| |
| #include <base/callback.h> |
| #include <base/macros.h> |
| |
| #include "trunks/tpm_generated.h" |
| #include "trunks/trunks_export.h" |
| |
| namespace trunks { |
| |
| class TrunksFactory; |
| |
| // TpmStateImpl is the default implementation of the TpmState interface. |
| class TRUNKS_EXPORT TpmStateImpl : public TpmState { |
| public: |
| explicit TpmStateImpl(const TrunksFactory& factory); |
| TpmStateImpl(const TpmStateImpl&) = delete; |
| TpmStateImpl& operator=(const TpmStateImpl&) = delete; |
| |
| ~TpmStateImpl() override = default; |
| |
| // TpmState methods. |
| TPM_RC Initialize() override; |
| bool IsOwnerPasswordSet() override; |
| bool IsEndorsementPasswordSet() override; |
| bool IsLockoutPasswordSet() override; |
| bool IsOwned() override; |
| bool IsInLockout() override; |
| bool IsPlatformHierarchyEnabled() override; |
| bool IsStorageHierarchyEnabled() override; |
| bool IsEndorsementHierarchyEnabled() override; |
| bool IsEnabled() override; |
| bool WasShutdownOrderly() override; |
| bool IsRSASupported() override; |
| bool IsECCSupported() override; |
| uint32_t GetLockoutCounter() override; |
| uint32_t GetLockoutThreshold() override; |
| uint32_t GetLockoutInterval() override; |
| uint32_t GetLockoutRecovery() override; |
| uint32_t GetMaxNVSize() override; |
| uint32_t GetTpmFamily() override; |
| uint32_t GetSpecificationLevel() override; |
| uint32_t GetSpecificationRevision() override; |
| uint32_t GetManufacturer() override; |
| uint32_t GetTpmModel() override; |
| uint64_t GetFirmwareVersion() override; |
| std::string GetVendorIDString() override; |
| bool GetTpmProperty(TPM_PT property, uint32_t* value) override; |
| bool GetAlgorithmProperties(TPM_ALG_ID algorithm, |
| TPMA_ALGORITHM* properties) override; |
| |
| private: |
| // This helper method calls TPM2_GetCapability in a loop until all available |
| // capabilities of the given type are sent to the |callback|. The callback |
| // returns the next property value to query if there is more data available or |
| // 0 if the capability data was empty. |
| using CapabilityCallback = base::Callback<uint32_t(const TPMU_CAPABILITIES&)>; |
| TPM_RC GetCapability(const CapabilityCallback& callback, |
| TPM_CAP capability, |
| uint32_t property, |
| uint32_t max_properties_per_call); |
| // Queries TPM properties and populates tpm_properties_. |
| TPM_RC CacheTpmProperties(); |
| uint32_t TpmPropertiesCallback(const TPMU_CAPABILITIES& capability_data); |
| // Queries algorithm properties and populates algorithm_properties_. |
| TPM_RC CacheAlgorithmProperties(); |
| uint32_t AlgorithmCallback(const TPMU_CAPABILITIES& capability_data); |
| |
| const TrunksFactory& factory_; |
| bool initialized_{false}; |
| std::map<TPM_PT, uint32_t> tpm_properties_; |
| std::map<TPM_ALG_ID, TPMA_ALGORITHM> algorithm_properties_; |
| }; |
| |
| } // namespace trunks |
| |
| #endif // TRUNKS_TPM_STATE_IMPL_H_ |