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68 lines
2.1 KiB
68 lines
2.1 KiB
// |
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// Copyright (C) 2015 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 TPM_MANAGER_SERVER_TPM_STATUS_IMPL_H_ |
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#define TPM_MANAGER_SERVER_TPM_STATUS_IMPL_H_ |
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#include "tpm_manager/server/tpm_status.h" |
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#include <memory> |
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#include <string> |
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#include <base/macros.h> |
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#include <trousers/tss.h> |
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#include <trousers/trousers.h> // NOLINT(build/include_alpha) |
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#include <tpm_manager/server/tpm_connection.h> |
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namespace tpm_manager { |
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class TpmStatusImpl : public TpmStatus { |
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public: |
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TpmStatusImpl() = default; |
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~TpmStatusImpl() override = default; |
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// TpmState methods. |
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bool IsTpmEnabled() override; |
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bool IsTpmOwned() override; |
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bool GetDictionaryAttackInfo(int* counter, |
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int* threshold, |
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bool* lockout, |
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int* seconds_remaining) override; |
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private: |
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// This method refreshes the |is_owned_| and |is_enabled_| status of the |
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// Tpm. It can be called multiple times. |
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void RefreshOwnedEnabledInfo(); |
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// This method wraps calls to Tspi_TPM_GetCapability. |data| is set to |
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// the raw capability data. If the optional out argument |tpm_result| is |
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// provided, it is set to the result of the |Tspi_TPM_GetCapability| call. |
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bool GetCapability(uint32_t capability, |
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uint32_t sub_capability, |
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std::string* data, |
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TSS_RESULT* tpm_result); |
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TpmConnection tpm_connection_; |
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bool is_enabled_{false}; |
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bool is_owned_{false}; |
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bool is_enable_initialized_{false}; |
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DISALLOW_COPY_AND_ASSIGN(TpmStatusImpl); |
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}; |
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} // namespace tpm_manager |
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#endif // TPM_MANAGER_SERVER_TPM_STATUS_IMPL_H_
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