78 lines
2.7 KiB
C++
78 lines
2.7 KiB
C++
//
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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_NVRAM_H_
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#define TPM_MANAGER_SERVER_TPM_NVRAM_H_
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#include <string>
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#include <vector>
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#include "tpm_manager/common/tpm_manager.pb.h"
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namespace tpm_manager {
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// TpmNvram is an interface for working with TPM NVRAM.
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class TpmNvram {
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public:
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TpmNvram() = default;
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virtual ~TpmNvram() = default;
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// Creates an NVRAM space in the TPM. Returns true on success.
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virtual NvramResult DefineSpace(
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uint32_t index,
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size_t size,
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const std::vector<NvramSpaceAttribute>& attributes,
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const std::string& authorization_value,
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NvramSpacePolicy policy) = 0;
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// Destroys an NVRAM space in the TPM. Returns true on success.
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virtual NvramResult DestroySpace(uint32_t index) = 0;
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// Writes |data| to the NVRAM space at |index|. The size of |data| must be
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// equal or less than the size of the NVRAM space. Returns true on success.
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virtual NvramResult WriteSpace(uint32_t index,
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const std::string& data,
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const std::string& authorization_value) = 0;
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// Reads all the |data| in the NVRAM space at |index|. Returns true on
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// success.
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virtual NvramResult ReadSpace(uint32_t index,
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std::string* data,
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const std::string& authorization_value) = 0;
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// Locks the NVRAM space at |index|. Returns true on success.
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virtual NvramResult LockSpace(uint32_t index,
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bool lock_read,
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bool lock_write,
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const std::string& authorization_value) = 0;
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// Lists all existing NVRAM spaces. Returns true on success.
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virtual NvramResult ListSpaces(std::vector<uint32_t>* index_list) = 0;
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// Provides basic information about a given space. All pointer are optional
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// and may be NULL. Returns true on success.
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virtual NvramResult GetSpaceInfo(
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uint32_t index,
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size_t* size,
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bool* is_read_locked,
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bool* is_write_locked,
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std::vector<NvramSpaceAttribute>* attributes,
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NvramSpacePolicy* policy) = 0;
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};
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} // namespace tpm_manager
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#endif // TPM_MANAGER_SERVER_TPM_NVRAM_H_
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