55 lines
1.7 KiB
C++
55 lines
1.7 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_CONNECTION_H_
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#define TPM_MANAGER_SERVER_TPM_CONNECTION_H_
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#include <string>
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#include <base/macros.h>
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#include <trousers/scoped_tss_type.h>
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namespace tpm_manager {
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class TpmConnection {
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public:
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TpmConnection() = default;
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~TpmConnection() = default;
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// This method returns a handle to the current Tpm context.
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// Note: this method still retains ownership of the context. If this class
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// is deleted, the context handle will be invalidated. Returns 0 on failure.
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TSS_HCONTEXT GetContext();
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// This method tries to get a handle to the TPM. Returns 0 on failure.
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TSS_HTPM GetTpm();
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// This method tries to get a handle to the TPM and with the given owner
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// password. Returns 0 on failure.
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TSS_HTPM GetTpmWithAuth(const std::string& owner_password);
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private:
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// This method connects to the Tpm. Returns true on success.
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bool ConnectContextIfNeeded();
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trousers::ScopedTssContext context_;
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DISALLOW_COPY_AND_ASSIGN(TpmConnection);
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};
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} // namespace tpm_manager
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#endif // TPM_MANAGER_SERVER_TPM_CONNECTION_H_
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