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88 lines
3.0 KiB
88 lines
3.0 KiB
// |
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// Copyright (C) 2014 The Android Open Source Project |
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// |
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// Licensed under the Apache License, Version 2.0 (the "License"); |
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// you may not use this file except in compliance with the License. |
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// You may obtain a copy of the License at |
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// |
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// http://www.apache.org/licenses/LICENSE-2.0 |
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// |
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// Unless required by applicable law or agreed to in writing, software |
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// distributed under the License is distributed on an "AS IS" BASIS, |
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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// |
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#ifndef TRUNKS_TPM_STATE_IMPL_H_ |
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#define TRUNKS_TPM_STATE_IMPL_H_ |
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#include "trunks/tpm_state.h" |
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#include <map> |
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#include <base/callback.h> |
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#include <base/macros.h> |
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#include "trunks/tpm_generated.h" |
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#include "trunks/trunks_export.h" |
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namespace trunks { |
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class TrunksFactory; |
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// TpmStateImpl is the default implementation of the TpmState interface. |
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class TRUNKS_EXPORT TpmStateImpl : public TpmState { |
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public: |
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explicit TpmStateImpl(const TrunksFactory& factory); |
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~TpmStateImpl() override = default; |
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// TpmState methods. |
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TPM_RC Initialize() override; |
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bool IsOwnerPasswordSet() override; |
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bool IsEndorsementPasswordSet() override; |
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bool IsLockoutPasswordSet() override; |
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bool IsOwned() override; |
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bool IsInLockout() override; |
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bool IsPlatformHierarchyEnabled() override; |
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bool IsStorageHierarchyEnabled() override; |
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bool IsEndorsementHierarchyEnabled() override; |
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bool IsEnabled() override; |
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bool WasShutdownOrderly() override; |
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bool IsRSASupported() override; |
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bool IsECCSupported() override; |
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uint32_t GetLockoutCounter() override; |
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uint32_t GetLockoutThreshold() override; |
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uint32_t GetLockoutInterval() override; |
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uint32_t GetLockoutRecovery() override; |
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uint32_t GetMaxNVSize() override; |
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bool GetTpmProperty(TPM_PT property, uint32_t* value) override; |
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bool GetAlgorithmProperties(TPM_ALG_ID algorithm, |
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TPMA_ALGORITHM* properties) override; |
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private: |
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// This helper method calls TPM2_GetCapability in a loop until all available |
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// capabilities of the given type are sent to the |callback|. The callback |
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// returns the next property value to query if there is more data available or |
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// 0 if the capability data was empty. |
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using CapabilityCallback = base::Callback<uint32_t(const TPMU_CAPABILITIES&)>; |
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TPM_RC GetCapability(const CapabilityCallback& callback, |
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TPM_CAP capability, |
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uint32_t property, |
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uint32_t max_properties_per_call); |
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// Queries TPM properties and populates tpm_properties_. |
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TPM_RC CacheTpmProperties(); |
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// Queries algorithm properties and populates algorithm_properties_. |
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TPM_RC CacheAlgorithmProperties(); |
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const TrunksFactory& factory_; |
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bool initialized_{false}; |
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std::map<TPM_PT, uint32_t> tpm_properties_; |
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std::map<TPM_ALG_ID, TPMA_ALGORITHM> algorithm_properties_; |
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DISALLOW_COPY_AND_ASSIGN(TpmStateImpl); |
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}; |
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} // namespace trunks |
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#endif // TRUNKS_TPM_STATE_IMPL_H_
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